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Finding the Fourth Proportional to 382.73, 572.85 and 252.83

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Solution

The fourth proportional to 382.73, 572.85 and 252.83 is: 378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.73 : 572.85 = 252.83 : x
  2. Step 2: Convert to fraction form
    382.73/572.85 = 252.83/x
  3. Step 3: Cross multiply
    382.73x = 572.85 × 252.83
  4. Step 4: Simplify right side
    382.73x = 144,833.67
  5. Step 5: Solve for x
    x = 144,833.67/382.73
  6. Step 6: Final answer
    x = 378.42

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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.