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Finding the Fourth Proportional to 329.04, 493.32 and 133.89

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Solution

The fourth proportional to 329.04, 493.32 and 133.89 is: 200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.04 : 493.32 = 133.89 : x
  2. Step 2: Convert to fraction form
    329.04/493.32 = 133.89/x
  3. Step 3: Cross multiply
    329.04x = 493.32 × 133.89
  4. Step 4: Simplify right side
    329.04x = 66,050.61
  5. Step 5: Solve for x
    x = 66,050.61/329.04
  6. Step 6: Final answer
    x = 200.74

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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.