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Finding the Fourth Proportional to 579, 868.37 and 168.03

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Solution

The fourth proportional to 579, 868.37 and 168.03 is: 252.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    579 : 868.37 = 168.03 : x
  2. Step 2: Convert to fraction form
    579/868.37 = 168.03/x
  3. Step 3: Cross multiply
    579x = 868.37 × 168.03
  4. Step 4: Simplify right side
    579x = 145,912.21
  5. Step 5: Solve for x
    x = 145,912.21/579
  6. Step 6: Final answer
    x = 252.01

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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.