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Finding the Fourth Proportional to 439.52, 606.32 and 271.52

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Solution

The fourth proportional to 439.52, 606.32 and 271.52 is: 374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.52 : 606.32 = 271.52 : x
  2. Step 2: Convert to fraction form
    439.52/606.32 = 271.52/x
  3. Step 3: Cross multiply
    439.52x = 606.32 × 271.52
  4. Step 4: Simplify right side
    439.52x = 164,626.91
  5. Step 5: Solve for x
    x = 164,626.91/439.52
  6. Step 6: Final answer
    x = 374.56

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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.