find the fourth proportional between 144 and 225
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Let fourth proportional between 144 and 255 is x.Then
》144:x::x:255
Now the products of extrem = product of mean
144×255=x^2
12^2×15^2=x^2
180^2=X^2
x=180
Hence the fourth proportional=180
》144:x::x:255
Now the products of extrem = product of mean
144×255=x^2
12^2×15^2=x^2
180^2=X^2
x=180
Hence the fourth proportional=180
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