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Finding the Fourth Proportional to 215,337.56, 323,027.85 and 82,329.71

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Solution

The fourth proportional to 215,337.56, 323,027.85 and 82,329.71 is: 123,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,337.56 : 323,027.85 = 82,329.71 : x
  2. Step 2: Convert to fraction form
    215,337.56/323,027.85 = 82,329.71/x
  3. Step 3: Cross multiply
    215,337.56x = 323,027.85 × 82,329.71
  4. Step 4: Simplify right side
    215,337.56x = 26,594,789,212.42
  5. Step 5: Solve for x
    x = 26,594,789,212.42/215,337.56
  6. Step 6: Final answer
    x = 123,502.79

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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.