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Finding the Fourth Proportional to 180.44, 250.16 and 169.40

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Solution

The fourth proportional to 180.44, 250.16 and 169.40 is: 234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.44 : 250.16 = 169.40 : x
  2. Step 2: Convert to fraction form
    180.44/250.16 = 169.40/x
  3. Step 3: Cross multiply
    180.44x = 250.16 × 169.40
  4. Step 4: Simplify right side
    180.44x = 42,377.10
  5. Step 5: Solve for x
    x = 42,377.10/180.44
  6. Step 6: Final answer
    x = 234.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.