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Finding the Fourth Proportional to 224.55, 334.32 and 221.88

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Solution

The fourth proportional to 224.55, 334.32 and 221.88 is: 330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.55 : 334.32 = 221.88 : x
  2. Step 2: Convert to fraction form
    224.55/334.32 = 221.88/x
  3. Step 3: Cross multiply
    224.55x = 334.32 × 221.88
  4. Step 4: Simplify right side
    224.55x = 74,178.92
  5. Step 5: Solve for x
    x = 74,178.92/224.55
  6. Step 6: Final answer
    x = 330.34

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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.