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Finding the Fourth Proportional to 568.66, 851.36 and 481.99

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Solution

The fourth proportional to 568.66, 851.36 and 481.99 is: 721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.66 : 851.36 = 481.99 : x
  2. Step 2: Convert to fraction form
    568.66/851.36 = 481.99/x
  3. Step 3: Cross multiply
    568.66x = 851.36 × 481.99
  4. Step 4: Simplify right side
    568.66x = 410,343.95
  5. Step 5: Solve for x
    x = 410,343.95/568.66
  6. Step 6: Final answer
    x = 721.60

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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.