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Finding the Fourth Proportional to 180.97, 271.40 and 59.20

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Solution

The fourth proportional to 180.97, 271.40 and 59.20 is: 88.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.97 : 271.40 = 59.20 : x
  2. Step 2: Convert to fraction form
    180.97/271.40 = 59.20/x
  3. Step 3: Cross multiply
    180.97x = 271.40 × 59.20
  4. Step 4: Simplify right side
    180.97x = 16,065.91
  5. Step 5: Solve for x
    x = 16,065.91/180.97
  6. Step 6: Final answer
    x = 88.78

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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.