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Finding the Fourth Proportional to 372.69, 514.47 and 240.09

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Solution

The fourth proportional to 372.69, 514.47 and 240.09 is: 331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.69 : 514.47 = 240.09 : x
  2. Step 2: Convert to fraction form
    372.69/514.47 = 240.09/x
  3. Step 3: Cross multiply
    372.69x = 514.47 × 240.09
  4. Step 4: Simplify right side
    372.69x = 123,519.10
  5. Step 5: Solve for x
    x = 123,519.10/372.69
  6. Step 6: Final answer
    x = 331.43

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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.