Finding the Fourth Proportional to 396,691.18, 547,356.82 and 235,596.76
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Solution
The fourth proportional to 396,691.18, 547,356.82 and 235,596.76 is: 325,077.79
Step by Step Solution
- Step 1: Write the proportion equation
396,691.18 : 547,356.82 = 235,596.76 : x - Step 2: Convert to fraction form
396,691.18/547,356.82 = 235,596.76/x - Step 3: Cross multiply
396,691.18x = 547,356.82 × 235,596.76 - Step 4: Simplify right side
396,691.18x = 128,955,493,355.90 - Step 5: Solve for x
x = 128,955,493,355.90/396,691.18 - Step 6: Final answer
x = 325,077.79
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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.