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Finding the Fourth Proportional to 180.62, 250.42 and 170.90

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Solution

The fourth proportional to 180.62, 250.42 and 170.90 is: 236.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.62 : 250.42 = 170.90 : x
  2. Step 2: Convert to fraction form
    180.62/250.42 = 170.90/x
  3. Step 3: Cross multiply
    180.62x = 250.42 × 170.90
  4. Step 4: Simplify right side
    180.62x = 42,796.78
  5. Step 5: Solve for x
    x = 42,796.78/180.62
  6. Step 6: Final answer
    x = 236.94

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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.