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Finding the Fourth Proportional to 587.38, 880.82 and 221.92

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Solution

The fourth proportional to 587.38, 880.82 and 221.92 is: 332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.38 : 880.82 = 221.92 : x
  2. Step 2: Convert to fraction form
    587.38/880.82 = 221.92/x
  3. Step 3: Cross multiply
    587.38x = 880.82 × 221.92
  4. Step 4: Simplify right side
    587.38x = 195,471.57
  5. Step 5: Solve for x
    x = 195,471.57/587.38
  6. Step 6: Final answer
    x = 332.79

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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.