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Finding the Fourth Proportional to 439.17, 606.20 and 366.27

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Solution

The fourth proportional to 439.17, 606.20 and 366.27 is: 505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.17 : 606.20 = 366.27 : x
  2. Step 2: Convert to fraction form
    439.17/606.20 = 366.27/x
  3. Step 3: Cross multiply
    439.17x = 606.20 × 366.27
  4. Step 4: Simplify right side
    439.17x = 222,031.04
  5. Step 5: Solve for x
    x = 222,031.04/439.17
  6. Step 6: Final answer
    x = 505.57

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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.