Finding the Fourth Proportional to 284,827.20, 393,053.76 and 157,498.44
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Solution
The fourth proportional to 284,827.20, 393,053.76 and 157,498.44 is: 217,343.55
Step by Step Solution
- Step 1: Write the proportion equation
284,827.20 : 393,053.76 = 157,498.44 : x - Step 2: Convert to fraction form
284,827.20/393,053.76 = 157,498.44/x - Step 3: Cross multiply
284,827.20x = 393,053.76 × 157,498.44 - Step 4: Simplify right side
284,827.20x = 61,905,354,036.13 - Step 5: Solve for x
x = 61,905,354,036.13/284,827.20 - Step 6: Final answer
x = 217,343.55
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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.