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Finding the Fourth Proportional to 422.58, 633.91 and 175.73

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Solution

The fourth proportional to 422.58, 633.91 and 175.73 is: 263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    422.58 : 633.91 = 175.73 : x
  2. Step 2: Convert to fraction form
    422.58/633.91 = 175.73/x
  3. Step 3: Cross multiply
    422.58x = 633.91 × 175.73
  4. Step 4: Simplify right side
    422.58x = 111,397.00
  5. Step 5: Solve for x
    x = 111,397.00/422.58
  6. Step 6: Final answer
    x = 263.61

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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.