Finding the Fourth Proportional to 284,743.62, 392,929.30 and 157,411.62
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Solution
The fourth proportional to 284,743.62, 392,929.30 and 157,411.62 is: 217,218.70
Step by Step Solution
- Step 1: Write the proportion equation
284,743.62 : 392,929.30 = 157,411.62 : x - Step 2: Convert to fraction form
284,743.62/392,929.30 = 157,411.62/x - Step 3: Cross multiply
284,743.62x = 392,929.30 × 157,411.62 - Step 4: Simplify right side
284,743.62x = 61,851,637,658.47 - Step 5: Solve for x
x = 61,851,637,658.47/284,743.62 - Step 6: Final answer
x = 217,218.70
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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.