Finding the Fourth Proportional to 186,965.92, 258,136.69 and 115,451.02
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Solution
The fourth proportional to 186,965.92, 258,136.69 and 115,451.02 is: 159,398.80
Step by Step Solution
- Step 1: Write the proportion equation
186,965.92 : 258,136.69 = 115,451.02 : x - Step 2: Convert to fraction form
186,965.92/258,136.69 = 115,451.02/x - Step 3: Cross multiply
186,965.92x = 258,136.69 × 115,451.02 - Step 4: Simplify right side
186,965.92x = 29,802,142,869.24 - Step 5: Solve for x
x = 29,802,142,869.24/186,965.92 - Step 6: Final answer
x = 159,398.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.