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Finding the Fourth Proportional to 372.14, 558.33 and 179.78

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Solution

The fourth proportional to 372.14, 558.33 and 179.78 is: 269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.14 : 558.33 = 179.78 : x
  2. Step 2: Convert to fraction form
    372.14/558.33 = 179.78/x
  3. Step 3: Cross multiply
    372.14x = 558.33 × 179.78
  4. Step 4: Simplify right side
    372.14x = 100,376.57
  5. Step 5: Solve for x
    x = 100,376.57/372.14
  6. Step 6: Final answer
    x = 269.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.