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Finding the Fourth Proportional to 382.08, 527.28 and 224.72

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Solution

The fourth proportional to 382.08, 527.28 and 224.72 is: 310.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.08 : 527.28 = 224.72 : x
  2. Step 2: Convert to fraction form
    382.08/527.28 = 224.72/x
  3. Step 3: Cross multiply
    382.08x = 527.28 × 224.72
  4. Step 4: Simplify right side
    382.08x = 118,486.60
  5. Step 5: Solve for x
    x = 118,486.60/382.08
  6. Step 6: Final answer
    x = 310.11

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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.