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Finding the Fourth Proportional to 372.44, 514.06 and 239.65

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Solution

The fourth proportional to 372.44, 514.06 and 239.65 is: 330.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.44 : 514.06 = 239.65 : x
  2. Step 2: Convert to fraction form
    372.44/514.06 = 239.65/x
  3. Step 3: Cross multiply
    372.44x = 514.06 × 239.65
  4. Step 4: Simplify right side
    372.44x = 123,194.48
  5. Step 5: Solve for x
    x = 123,194.48/372.44
  6. Step 6: Final answer
    x = 330.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.