Finding the Fourth Proportional to 396,545.98, 547,234.14 and 215,258.03
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Solution
The fourth proportional to 396,545.98, 547,234.14 and 215,258.03 is: 297,056.45
Step by Step Solution
- Step 1: Write the proportion equation
396,545.98 : 547,234.14 = 215,258.03 : x - Step 2: Convert to fraction form
396,545.98/547,234.14 = 215,258.03/x - Step 3: Cross multiply
396,545.98x = 547,234.14 × 215,258.03 - Step 4: Simplify right side
396,545.98x = 117,796,542,925.14 - Step 5: Solve for x
x = 117,796,542,925.14/396,545.98 - Step 6: Final answer
x = 297,056.45
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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.