Finding the Fourth Proportional to 391,267.68, 586,901.52 and 213,677.80
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Solution
The fourth proportional to 391,267.68, 586,901.52 and 213,677.80 is: 320,516.70
Step by Step Solution
- Step 1: Write the proportion equation
391,267.68 : 586,901.52 = 213,677.80 : x - Step 2: Convert to fraction form
391,267.68/586,901.52 = 213,677.80/x - Step 3: Cross multiply
391,267.68x = 586,901.52 × 213,677.80 - Step 4: Simplify right side
391,267.68x = 125,407,825,610.26 - Step 5: Solve for x
x = 125,407,825,610.26/391,267.68 - Step 6: Final answer
x = 320,516.70
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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.