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Finding the Fourth Proportional to 414.62, 572.26 and 239.94

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Solution

The fourth proportional to 414.62, 572.26 and 239.94 is: 331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.62 : 572.26 = 239.94 : x
  2. Step 2: Convert to fraction form
    414.62/572.26 = 239.94/x
  3. Step 3: Cross multiply
    414.62x = 572.26 × 239.94
  4. Step 4: Simplify right side
    414.62x = 137,308.06
  5. Step 5: Solve for x
    x = 137,308.06/414.62
  6. Step 6: Final answer
    x = 331.17

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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.