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Finding the Fourth Proportional to 337.42, 503.60 and 329.21

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Solution

The fourth proportional to 337.42, 503.60 and 329.21 is: 491.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.42 : 503.60 = 329.21 : x
  2. Step 2: Convert to fraction form
    337.42/503.60 = 329.21/x
  3. Step 3: Cross multiply
    337.42x = 503.60 × 329.21
  4. Step 4: Simplify right side
    337.42x = 165,793.95
  5. Step 5: Solve for x
    x = 165,793.95/337.42
  6. Step 6: Final answer
    x = 491.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.