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Finding the Fourth Proportional to 588.38, 881.78 and 279.56

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Solution

The fourth proportional to 588.38, 881.78 and 279.56 is: 418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.38 : 881.78 = 279.56 : x
  2. Step 2: Convert to fraction form
    588.38/881.78 = 279.56/x
  3. Step 3: Cross multiply
    588.38x = 881.78 × 279.56
  4. Step 4: Simplify right side
    588.38x = 246,510.42
  5. Step 5: Solve for x
    x = 246,510.42/588.38
  6. Step 6: Final answer
    x = 418.96

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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.