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Finding the Fourth Proportional to 178.24, 267 and 171.93

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Solution

The fourth proportional to 178.24, 267 and 171.93 is: 257.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.24 : 267 = 171.93 : x
  2. Step 2: Convert to fraction form
    178.24/267 = 171.93/x
  3. Step 3: Cross multiply
    178.24x = 267 × 171.93
  4. Step 4: Simplify right side
    178.24x = 45,905.31
  5. Step 5: Solve for x
    x = 45,905.31/178.24
  6. Step 6: Final answer
    x = 257.55

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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.