Math/scaling question here

[Supertom]

Hi everyone,

Got a math question here. If I have a 1/72 image that I want to convert to 1/48 and 1/32, what would the mathematical calculation I would need where result x is a percentage? The idea is to plug in the percentage increase in Photoshop.

Thanks!

[72linerlover]

Hi Supertom

1/72 to 1/48 >150%

1/72 to 1/32 >225%

(1/48 to 1/32 >150%)

Euge

[Silverback]

Hi everyone,

Got a math question here. If I have a 1/72 image that I want to convert to 1/48 and 1/32, what would the mathematical calculation I would need where result x is a percentage? The idea is to plug in the percentage increase in Photoshop.

Thanks!

Start with the divisor of the existing scale (72) and divide it by the divisor of the desired scale (48, 32, whatever). Since you know you want an enlargement, the percentage will be greater than 100%. Arrange the two terms until the dividend yields a number greater than 1. Multiply that answer by 100 to convert it to a percentage.

Example: 1/72 to 1/48 ->->-> 72/48=1.5 As a percentage, 1.5 is 1.5x100=150%

Example: 1/48 to 1/24 ->->-> 48/24=2.0 As a percentage, 2.0 is 2.0x100=200%

Reductions will result in a percentage less than 100%.

Example: 1/32 to 1/72->->-> 32/72=0.44444, or 44.444% (on a copy machine, that's 44%)

Phil

[Supertom]

Ahh...thanks guys!!!

[terryt]

This Calculator has been around for years, will do all the math for you, just plug in the scale.

http://www.clubhyper.com/reference/calculatorfc_1.htm

[Supertom]

Thanks terryt!

[terryt]

You're welcome Supertom, anything I can do to make life easier.

[toadwbg]

I like them fractions, yup.

[Robert K]

"Scale Converter" on the Tools 'N' Tips page on the ARC Main page.