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Finding the Fourth Proportional to 579.09, 868.25 and 270.93

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Solution

The fourth proportional to 579.09, 868.25 and 270.93 is: 406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.09 : 868.25 = 270.93 : x
  2. Step 2: Convert to fraction form
    579.09/868.25 = 270.93/x
  3. Step 3: Cross multiply
    579.09x = 868.25 × 270.93
  4. Step 4: Simplify right side
    579.09x = 235,234.97
  5. Step 5: Solve for x
    x = 235,234.97/579.09
  6. Step 6: Final answer
    x = 406.21

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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.