Question

Find out the mean proportional between 0.08 and 0.18.

Answer 1

Mean proportional between 0.08 and 0.18
= $\sqrt{0.08\times 0.18}=\sqrt{\frac{8}{100}\times \frac{18}{100}}=\sqrt{\frac{144}{100\times 100}}=\frac{12}{100}=0.12$