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Finding the Fourth Proportional to 180.32, 250.40 and 178.88

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Solution

The fourth proportional to 180.32, 250.40 and 178.88 is: 248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.32 : 250.40 = 178.88 : x
  2. Step 2: Convert to fraction form
    180.32/250.40 = 178.88/x
  3. Step 3: Cross multiply
    180.32x = 250.40 × 178.88
  4. Step 4: Simplify right side
    180.32x = 44,791.55
  5. Step 5: Solve for x
    x = 44,791.55/180.32
  6. Step 6: Final answer
    x = 248.40

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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.