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Finding the Fourth Proportional to 372.07, 558.11 and 152.74

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Solution

The fourth proportional to 372.07, 558.11 and 152.74 is: 229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.07 : 558.11 = 152.74 : x
  2. Step 2: Convert to fraction form
    372.07/558.11 = 152.74/x
  3. Step 3: Cross multiply
    372.07x = 558.11 × 152.74
  4. Step 4: Simplify right side
    372.07x = 85,245.72
  5. Step 5: Solve for x
    x = 85,245.72/372.07
  6. Step 6: Final answer
    x = 229.11

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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.