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Finding the Fourth Proportional to 634.38, 951.98 and 223.85

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Solution

The fourth proportional to 634.38, 951.98 and 223.85 is: 335.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.38 : 951.98 = 223.85 : x
  2. Step 2: Convert to fraction form
    634.38/951.98 = 223.85/x
  3. Step 3: Cross multiply
    634.38x = 951.98 × 223.85
  4. Step 4: Simplify right side
    634.38x = 213,094.84
  5. Step 5: Solve for x
    x = 213,094.84/634.38
  6. Step 6: Final answer
    x = 335.91

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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.