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Finding the Fourth Proportional to 180.38, 246.78 and 179.61

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Solution

The fourth proportional to 180.38, 246.78 and 179.61 is: 245.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.38 : 246.78 = 179.61 : x
  2. Step 2: Convert to fraction form
    180.38/246.78 = 179.61/x
  3. Step 3: Cross multiply
    180.38x = 246.78 × 179.61
  4. Step 4: Simplify right side
    180.38x = 44,322.02
  5. Step 5: Solve for x
    x = 44,322.02/180.38
  6. Step 6: Final answer
    x = 245.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.