Since 1 Indian Rupee is equal to 0.21973333180004762 South African Rand, we could say that n Indian Rupees are equal to 0.21973333180004762 times n South African Rand. In other words, we could use the following formula:
South African Rand = Indian Rupees x 0.21973333180004762
For example, let's say that we want to convert 2.0 Indian Rupees to South African Rand. Then, we just replace Indian Rupees in the abovementioned formula with 2.0:
South African Rand = 2.0 x 0.21973333180004762
That is, 2.0 Indian Rupees are equal to 0.43946666360009523 South African Rand.