Finding the Fourth Proportional to 284,394.52, 392,456.37 and 157,067.38
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Solution
The fourth proportional to 284,394.52, 392,456.37 and 157,067.38 is: 216,748.53
Step by Step Solution
- Step 1: Write the proportion equation
284,394.52 : 392,456.37 = 157,067.38 : x - Step 2: Convert to fraction form
284,394.52/392,456.37 = 157,067.38/x - Step 3: Cross multiply
284,394.52x = 392,456.37 × 157,067.38 - Step 4: Simplify right side
284,394.52x = 61,642,093,800.21 - Step 5: Solve for x
x = 61,642,093,800.21/284,394.52 - Step 6: Final answer
x = 216,748.53
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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.