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Finding the Fourth Proportional to 568.73, 853.03 and 221.83

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Solution

The fourth proportional to 568.73, 853.03 and 221.83 is: 332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.73 : 853.03 = 221.83 : x
  2. Step 2: Convert to fraction form
    568.73/853.03 = 221.83/x
  3. Step 3: Cross multiply
    568.73x = 853.03 × 221.83
  4. Step 4: Simplify right side
    568.73x = 189,227.64
  5. Step 5: Solve for x
    x = 189,227.64/568.73
  6. Step 6: Final answer
    x = 332.72

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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.