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Finding the Fourth Proportional to 334.32, 461.22 and 222.42

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Solution

The fourth proportional to 334.32, 461.22 and 222.42 is: 306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.32 : 461.22 = 222.42 : x
  2. Step 2: Convert to fraction form
    334.32/461.22 = 222.42/x
  3. Step 3: Cross multiply
    334.32x = 461.22 × 222.42
  4. Step 4: Simplify right side
    334.32x = 102,584.55
  5. Step 5: Solve for x
    x = 102,584.55/334.32
  6. Step 6: Final answer
    x = 306.85

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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.