Question
Find the third proportional to $₹1.60, ₹0.40$

Answer

Let the required third proportional be $x$
$\therefore$ ₹1.60, ₹0.40, ₹$x$ are in continued proportion.
$\Rightarrow 1.60 \times x=0.40 \times 0.40 $
$\Rightarrow x=\frac{0.40 \times 0.40}{1.60} $
$\Rightarrow x=0.1$
$\therefore$ Required proportional $=0.1$

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