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Finding the Fourth Proportional to 372.56, 558.27 and 225.93

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Solution

The fourth proportional to 372.56, 558.27 and 225.93 is: 338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.56 : 558.27 = 225.93 : x
  2. Step 2: Convert to fraction form
    372.56/558.27 = 225.93/x
  3. Step 3: Cross multiply
    372.56x = 558.27 × 225.93
  4. Step 4: Simplify right side
    372.56x = 126,129.94
  5. Step 5: Solve for x
    x = 126,129.94/372.56
  6. Step 6: Final answer
    x = 338.55

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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.