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Finding the Fourth Proportional to 391,330.47, 586,755.81 and 166,562.91

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Solution

The fourth proportional to 391,330.47, 586,755.81 and 166,562.91 is: 249,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,330.47 : 586,755.81 = 166,562.91 : x
  2. Step 2: Convert to fraction form
    391,330.47/586,755.81 = 166,562.91/x
  3. Step 3: Cross multiply
    391,330.47x = 586,755.81 × 166,562.91
  4. Step 4: Simplify right side
    391,330.47x = 97,731,755,173.01
  5. Step 5: Solve for x
    x = 97,731,755,173.01/391,330.47
  6. Step 6: Final answer
    x = 249,742.26

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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.