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Finding the Fourth Proportional to 266,068.38, 399,171.72 and 132,943.26

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Solution

The fourth proportional to 266,068.38, 399,171.72 and 132,943.26 is: 199,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,068.38 : 399,171.72 = 132,943.26 : x
  2. Step 2: Convert to fraction form
    266,068.38/399,171.72 = 132,943.26/x
  3. Step 3: Cross multiply
    266,068.38x = 399,171.72 × 132,943.26
  4. Step 4: Simplify right side
    266,068.38x = 53,067,189,756.61
  5. Step 5: Solve for x
    x = 53,067,189,756.61/266,068.38
  6. Step 6: Final answer
    x = 199,449.44

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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.