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Finding the Fourth Proportional to 484.64, 725.59 and 329.73

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Solution

The fourth proportional to 484.64, 725.59 and 329.73 is: 493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.64 : 725.59 = 329.73 : x
  2. Step 2: Convert to fraction form
    484.64/725.59 = 329.73/x
  3. Step 3: Cross multiply
    484.64x = 725.59 × 329.73
  4. Step 4: Simplify right side
    484.64x = 239,248.79
  5. Step 5: Solve for x
    x = 239,248.79/484.64
  6. Step 6: Final answer
    x = 493.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.