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Finding the Fourth Proportional to 422.53, 634.01 and 175.91

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Solution

The fourth proportional to 422.53, 634.01 and 175.91 is: 263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.53 : 634.01 = 175.91 : x
  2. Step 2: Convert to fraction form
    422.53/634.01 = 175.91/x
  3. Step 3: Cross multiply
    422.53x = 634.01 × 175.91
  4. Step 4: Simplify right side
    422.53x = 111,529.40
  5. Step 5: Solve for x
    x = 111,529.40/422.53
  6. Step 6: Final answer
    x = 263.96

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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.