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Finding the Fourth Proportional to 178.26, 266.88 and 132.82

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Solution

The fourth proportional to 178.26, 266.88 and 132.82 is: 198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.26 : 266.88 = 132.82 : x
  2. Step 2: Convert to fraction form
    178.26/266.88 = 132.82/x
  3. Step 3: Cross multiply
    178.26x = 266.88 × 132.82
  4. Step 4: Simplify right side
    178.26x = 35,447.00
  5. Step 5: Solve for x
    x = 35,447.00/178.26
  6. Step 6: Final answer
    x = 198.85

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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.