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Finding the Fourth Proportional to 149.73, 225.38 and 127.44

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Solution

The fourth proportional to 149.73, 225.38 and 127.44 is: 191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.73 : 225.38 = 127.44 : x
  2. Step 2: Convert to fraction form
    149.73/225.38 = 127.44/x
  3. Step 3: Cross multiply
    149.73x = 225.38 × 127.44
  4. Step 4: Simplify right side
    149.73x = 28,722.43
  5. Step 5: Solve for x
    x = 28,722.43/149.73
  6. Step 6: Final answer
    x = 191.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.