Finding the Fourth Proportional to 391,115.40, 586,560.11 and 177,764.46
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Solution
The fourth proportional to 391,115.40, 586,560.11 and 177,764.46 is: 266,595.33
Step by Step Solution
- Step 1: Write the proportion equation
391,115.40 : 586,560.11 = 177,764.46 : x - Step 2: Convert to fraction form
391,115.40/586,560.11 = 177,764.46/x - Step 3: Cross multiply
391,115.40x = 586,560.11 × 177,764.46 - Step 4: Simplify right side
391,115.40x = 104,269,540,322.87 - Step 5: Solve for x
x = 104,269,540,322.87/391,115.40 - Step 6: Final answer
x = 266,595.33
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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.