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Finding the Fourth Proportional to 178.83, 267.97 and 87.50

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Solution

The fourth proportional to 178.83, 267.97 and 87.50 is: 131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.83 : 267.97 = 87.50 : x
  2. Step 2: Convert to fraction form
    178.83/267.97 = 87.50/x
  3. Step 3: Cross multiply
    178.83x = 267.97 × 87.50
  4. Step 4: Simplify right side
    178.83x = 23,447.38
  5. Step 5: Solve for x
    x = 23,447.38/178.83
  6. Step 6: Final answer
    x = 131.12

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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.