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Finding the Fourth Proportional to 579.37, 869.19 and 168.52

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Solution

The fourth proportional to 579.37, 869.19 and 168.52 is: 252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.37 : 869.19 = 168.52 : x
  2. Step 2: Convert to fraction form
    579.37/869.19 = 168.52/x
  3. Step 3: Cross multiply
    579.37x = 869.19 × 168.52
  4. Step 4: Simplify right side
    579.37x = 146,475.90
  5. Step 5: Solve for x
    x = 146,475.90/579.37
  6. Step 6: Final answer
    x = 252.82

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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.