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Finding the Fourth Proportional to 633.79, 951.27 and 472.18

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Solution

The fourth proportional to 633.79, 951.27 and 472.18 is: 708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.79 : 951.27 = 472.18 : x
  2. Step 2: Convert to fraction form
    633.79/951.27 = 472.18/x
  3. Step 3: Cross multiply
    633.79x = 951.27 × 472.18
  4. Step 4: Simplify right side
    633.79x = 449,170.67
  5. Step 5: Solve for x
    x = 449,170.67/633.79
  6. Step 6: Final answer
    x = 708.71

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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.