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Finding the Fourth Proportional to 166.11, 248.97 and 127.29

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Solution

The fourth proportional to 166.11, 248.97 and 127.29 is: 190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.11 : 248.97 = 127.29 : x
  2. Step 2: Convert to fraction form
    166.11/248.97 = 127.29/x
  3. Step 3: Cross multiply
    166.11x = 248.97 × 127.29
  4. Step 4: Simplify right side
    166.11x = 31,691.39
  5. Step 5: Solve for x
    x = 31,691.39/166.11
  6. Step 6: Final answer
    x = 190.79

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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.