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Finding the Fourth Proportional to 178.35, 267.45 and 166.87

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Solution

The fourth proportional to 178.35, 267.45 and 166.87 is: 250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.35 : 267.45 = 166.87 : x
  2. Step 2: Convert to fraction form
    178.35/267.45 = 166.87/x
  3. Step 3: Cross multiply
    178.35x = 267.45 × 166.87
  4. Step 4: Simplify right side
    178.35x = 44,629.38
  5. Step 5: Solve for x
    x = 44,629.38/178.35
  6. Step 6: Final answer
    x = 250.23

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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.