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Finding the Fourth Proportional to 435,073.72, 653,251.21 and 243,323.83

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Solution

The fourth proportional to 435,073.72, 653,251.21 and 243,323.83 is: 365,344.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,073.72 : 653,251.21 = 243,323.83 : x
  2. Step 2: Convert to fraction form
    435,073.72/653,251.21 = 243,323.83/x
  3. Step 3: Cross multiply
    435,073.72x = 653,251.21 × 243,323.83
  4. Step 4: Simplify right side
    435,073.72x = 158,951,586,369.33
  5. Step 5: Solve for x
    x = 158,951,586,369.33/435,073.72
  6. Step 6: Final answer
    x = 365,344.03

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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.