Finding the Fourth Proportional to 198,481.52, 273,909.68 and 113,625.92
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Solution
The fourth proportional to 198,481.52, 273,909.68 and 113,625.92 is: 156,806.74
Step by Step Solution
- Step 1: Write the proportion equation
198,481.52 : 273,909.68 = 113,625.92 : x - Step 2: Convert to fraction form
198,481.52/273,909.68 = 113,625.92/x - Step 3: Cross multiply
198,481.52x = 273,909.68 × 113,625.92 - Step 4: Simplify right side
198,481.52x = 31,123,239,386.91 - Step 5: Solve for x
x = 31,123,239,386.91/198,481.52 - Step 6: Final answer
x = 156,806.74
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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.