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Finding the Fourth Proportional to 180.73, 249.68 and 131.83

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Solution

The fourth proportional to 180.73, 249.68 and 131.83 is: 182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.73 : 249.68 = 131.83 : x
  2. Step 2: Convert to fraction form
    180.73/249.68 = 131.83/x
  3. Step 3: Cross multiply
    180.73x = 249.68 × 131.83
  4. Step 4: Simplify right side
    180.73x = 32,915.02
  5. Step 5: Solve for x
    x = 32,915.02/180.73
  6. Step 6: Final answer
    x = 182.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.