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Finding the Fourth Proportional to 484.28, 667.14 and 336.66

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Solution

The fourth proportional to 484.28, 667.14 and 336.66 is: 463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.28 : 667.14 = 336.66 : x
  2. Step 2: Convert to fraction form
    484.28/667.14 = 336.66/x
  3. Step 3: Cross multiply
    484.28x = 667.14 × 336.66
  4. Step 4: Simplify right side
    484.28x = 224,599.35
  5. Step 5: Solve for x
    x = 224,599.35/484.28
  6. Step 6: Final answer
    x = 463.78

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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.