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Finding the Fourth Proportional to 546.41, 818.70 and 329.54

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Solution

The fourth proportional to 546.41, 818.70 and 329.54 is: 493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.41 : 818.70 = 329.54 : x
  2. Step 2: Convert to fraction form
    546.41/818.70 = 329.54/x
  3. Step 3: Cross multiply
    546.41x = 818.70 × 329.54
  4. Step 4: Simplify right side
    546.41x = 269,790.30
  5. Step 5: Solve for x
    x = 269,790.30/546.41
  6. Step 6: Final answer
    x = 493.76

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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.