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Finding the Fourth Proportional to 439.49, 606.42 and 252.96

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Solution

The fourth proportional to 439.49, 606.42 and 252.96 is: 349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.49 : 606.42 = 252.96 : x
  2. Step 2: Convert to fraction form
    439.49/606.42 = 252.96/x
  3. Step 3: Cross multiply
    439.49x = 606.42 × 252.96
  4. Step 4: Simplify right side
    439.49x = 153,397.73
  5. Step 5: Solve for x
    x = 153,397.73/439.49
  6. Step 6: Final answer
    x = 349.03

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