Finding the Fourth Proportional to 423,545.13, 634,825.35 and 157,135.73
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Solution
The fourth proportional to 423,545.13, 634,825.35 and 157,135.73 is: 235,520.93
Step by Step Solution
- Step 1: Write the proportion equation
423,545.13 : 634,825.35 = 157,135.73 : x - Step 2: Convert to fraction form
423,545.13/634,825.35 = 157,135.73/x - Step 3: Cross multiply
423,545.13x = 634,825.35 × 157,135.73 - Step 4: Simplify right side
423,545.13x = 99,753,741,620.63 - Step 5: Solve for x
x = 99,753,741,620.63/423,545.13 - Step 6: Final answer
x = 235,520.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.