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Finding the Fourth Proportional to 372,051.72, 557,747.10 and 135,350.28

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Solution

The fourth proportional to 372,051.72, 557,747.10 and 135,350.28 is: 202,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,051.72 : 557,747.10 = 135,350.28 : x
  2. Step 2: Convert to fraction form
    372,051.72/557,747.10 = 135,350.28/x
  3. Step 3: Cross multiply
    372,051.72x = 557,747.10 × 135,350.28
  4. Step 4: Simplify right side
    372,051.72x = 75,491,226,154.19
  5. Step 5: Solve for x
    x = 75,491,226,154.19/372,051.72
  6. Step 6: Final answer
    x = 202,905.19

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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.