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Finding the Fourth Proportional to 179.49, 267.72 and 150.78

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Solution

The fourth proportional to 179.49, 267.72 and 150.78 is: 224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.49 : 267.72 = 150.78 : x
  2. Step 2: Convert to fraction form
    179.49/267.72 = 150.78/x
  3. Step 3: Cross multiply
    179.49x = 267.72 × 150.78
  4. Step 4: Simplify right side
    179.49x = 40,366.82
  5. Step 5: Solve for x
    x = 40,366.82/179.49
  6. Step 6: Final answer
    x = 224.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.