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Finding the Fourth Proportional to 179.92, 248.29 and 113.57

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Solution

The fourth proportional to 179.92, 248.29 and 113.57 is: 156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.92 : 248.29 = 113.57 : x
  2. Step 2: Convert to fraction form
    179.92/248.29 = 113.57/x
  3. Step 3: Cross multiply
    179.92x = 248.29 × 113.57
  4. Step 4: Simplify right side
    179.92x = 28,198.30
  5. Step 5: Solve for x
    x = 28,198.30/179.92
  6. Step 6: Final answer
    x = 156.73

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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.