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Finding the Fourth Proportional to 224.56, 334.95 and 217.72

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Solution

The fourth proportional to 224.56, 334.95 and 217.72 is: 324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.56 : 334.95 = 217.72 : x
  2. Step 2: Convert to fraction form
    224.56/334.95 = 217.72/x
  3. Step 3: Cross multiply
    224.56x = 334.95 × 217.72
  4. Step 4: Simplify right side
    224.56x = 72,924.92
  5. Step 5: Solve for x
    x = 72,924.92/224.56
  6. Step 6: Final answer
    x = 324.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.