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21 December, 21:49

A line with a length of 179.591mm needs to be scaled by what factor to get to a length of 200mm

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  1. 21 December, 22:13
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    Call the scale factor k for now

    The idea is to multiply this scale factor by the old length (179.591) to get the new length (200)

    So ...

    (old length) * (scale factor) = new length

    179.591*k = 200

    k = 200/179.591

    k = 1.1136415521936 << - - - this value is approximate

    So the scale factor is roughly 1.1136415521936

    If you need to round to say 3 decimal places, then it would become 1.114

    Meaning that if you multiply the old length by roughly 1.114 you'll get the new length
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