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Finding the Fourth Proportional to 461,126.86, 691,755.02 and 161,538.86

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Solution

The fourth proportional to 461,126.86, 691,755.02 and 161,538.86 is: 242,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,126.86 : 691,755.02 = 161,538.86 : x
  2. Step 2: Convert to fraction form
    461,126.86/691,755.02 = 161,538.86/x
  3. Step 3: Cross multiply
    461,126.86x = 691,755.02 × 161,538.86
  4. Step 4: Simplify right side
    461,126.86x = 111,745,317,330.08
  5. Step 5: Solve for x
    x = 111,745,317,330.08/461,126.86
  6. Step 6: Final answer
    x = 242,330.97

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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.