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Finding the Fourth Proportional to 337.28, 465.18 and 220.82

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Solution

The fourth proportional to 337.28, 465.18 and 220.82 is: 304.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.28 : 465.18 = 220.82 : x
  2. Step 2: Convert to fraction form
    337.28/465.18 = 220.82/x
  3. Step 3: Cross multiply
    337.28x = 465.18 × 220.82
  4. Step 4: Simplify right side
    337.28x = 102,721.05
  5. Step 5: Solve for x
    x = 102,721.05/337.28
  6. Step 6: Final answer
    x = 304.56

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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.