Finding the Fourth Proportional to 402,489.24, 555,402.78 and 232,734.36
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Solution
The fourth proportional to 402,489.24, 555,402.78 and 232,734.36 is: 321,154.70
Step by Step Solution
- Step 1: Write the proportion equation
402,489.24 : 555,402.78 = 232,734.36 : x - Step 2: Convert to fraction form
402,489.24/555,402.78 = 232,734.36/x - Step 3: Cross multiply
402,489.24x = 555,402.78 × 232,734.36 - Step 4: Simplify right side
402,489.24x = 129,261,310,545.52 - Step 5: Solve for x
x = 129,261,310,545.52/402,489.24 - Step 6: Final answer
x = 321,154.70
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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.