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Finding the Fourth Proportional to 625.74, 938.82 and 296.94

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Solution

The fourth proportional to 625.74, 938.82 and 296.94 is: 445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.74 : 938.82 = 296.94 : x
  2. Step 2: Convert to fraction form
    625.74/938.82 = 296.94/x
  3. Step 3: Cross multiply
    625.74x = 938.82 × 296.94
  4. Step 4: Simplify right side
    625.74x = 278,773.21
  5. Step 5: Solve for x
    x = 278,773.21/625.74
  6. Step 6: Final answer
    x = 445.51

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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.