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Finding the Fourth Proportional to 217,500.68, 326,238.03 and 67,719.89

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Solution

The fourth proportional to 217,500.68, 326,238.03 and 67,719.89 is: 101,575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,500.68 : 326,238.03 = 67,719.89 : x
  2. Step 2: Convert to fraction form
    217,500.68/326,238.03 = 67,719.89/x
  3. Step 3: Cross multiply
    217,500.68x = 326,238.03 × 67,719.89
  4. Step 4: Simplify right side
    217,500.68x = 22,092,801,874.23
  5. Step 5: Solve for x
    x = 22,092,801,874.23/217,500.68
  6. Step 6: Final answer
    x = 101,575.79

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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.