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Finding the Fourth Proportional to 166.12, 249.15 and 44.38

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Solution

The fourth proportional to 166.12, 249.15 and 44.38 is: 66.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.12 : 249.15 = 44.38 : x
  2. Step 2: Convert to fraction form
    166.12/249.15 = 44.38/x
  3. Step 3: Cross multiply
    166.12x = 249.15 × 44.38
  4. Step 4: Simplify right side
    166.12x = 11,057.28
  5. Step 5: Solve for x
    x = 11,057.28/166.12
  6. Step 6: Final answer
    x = 66.56

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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.