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Finding the Fourth Proportional to 568.91, 853.22 and 222.12

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Solution

The fourth proportional to 568.91, 853.22 and 222.12 is: 333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.91 : 853.22 = 222.12 : x
  2. Step 2: Convert to fraction form
    568.91/853.22 = 222.12/x
  3. Step 3: Cross multiply
    568.91x = 853.22 × 222.12
  4. Step 4: Simplify right side
    568.91x = 189,517.78
  5. Step 5: Solve for x
    x = 189,517.78/568.91
  6. Step 6: Final answer
    x = 333.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.