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Finding the Fourth Proportional to 372.44, 559.20 and 227.72

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Solution

The fourth proportional to 372.44, 559.20 and 227.72 is: 341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.44 : 559.20 = 227.72 : x
  2. Step 2: Convert to fraction form
    372.44/559.20 = 227.72/x
  3. Step 3: Cross multiply
    372.44x = 559.20 × 227.72
  4. Step 4: Simplify right side
    372.44x = 127,341.02
  5. Step 5: Solve for x
    x = 127,341.02/372.44
  6. Step 6: Final answer
    x = 341.91

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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.