Finding the Fourth Proportional to 284,968.13, 393,221.99 and 157,626.41
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Solution
The fourth proportional to 284,968.13, 393,221.99 and 157,626.41 is: 217,505.62
Step by Step Solution
- Step 1: Write the proportion equation
284,968.13 : 393,221.99 = 157,626.41 : x - Step 2: Convert to fraction form
284,968.13/393,221.99 = 157,626.41/x - Step 3: Cross multiply
284,968.13x = 393,221.99 × 157,626.41 - Step 4: Simplify right side
284,968.13x = 61,982,169,044.71 - Step 5: Solve for x
x = 61,982,169,044.71/284,968.13 - Step 6: Final answer
x = 217,505.62
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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.