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Finding the Fourth Proportional to 568.98, 853.22 and 222.13

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Solution

The fourth proportional to 568.98, 853.22 and 222.13 is: 333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.98 : 853.22 = 222.13 : x
  2. Step 2: Convert to fraction form
    568.98/853.22 = 222.13/x
  3. Step 3: Cross multiply
    568.98x = 853.22 × 222.13
  4. Step 4: Simplify right side
    568.98x = 189,525.76
  5. Step 5: Solve for x
    x = 189,525.76/568.98
  6. Step 6: Final answer
    x = 333.10

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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.