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Finding the Fourth Proportional to 382.27, 527.56 and 216.53

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Solution

The fourth proportional to 382.27, 527.56 and 216.53 is: 298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.27 : 527.56 = 216.53 : x
  2. Step 2: Convert to fraction form
    382.27/527.56 = 216.53/x
  3. Step 3: Cross multiply
    382.27x = 527.56 × 216.53
  4. Step 4: Simplify right side
    382.27x = 114,232.57
  5. Step 5: Solve for x
    x = 114,232.57/382.27
  6. Step 6: Final answer
    x = 298.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.