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Finding the Fourth Proportional to 382.13, 527.28 and 224.81

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Solution

The fourth proportional to 382.13, 527.28 and 224.81 is: 310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.13 : 527.28 = 224.81 : x
  2. Step 2: Convert to fraction form
    382.13/527.28 = 224.81/x
  3. Step 3: Cross multiply
    382.13x = 527.28 × 224.81
  4. Step 4: Simplify right side
    382.13x = 118,535.18
  5. Step 5: Solve for x
    x = 118,535.18/382.13
  6. Step 6: Final answer
    x = 310.20

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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.