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Finding the Fourth Proportional to 398, 596.99 and 166.83

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Solution

The fourth proportional to 398, 596.99 and 166.83 is: 250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398 : 596.99 = 166.83 : x
  2. Step 2: Convert to fraction form
    398/596.99 = 166.83/x
  3. Step 3: Cross multiply
    398x = 596.99 × 166.83
  4. Step 4: Simplify right side
    398x = 99,592.02
  5. Step 5: Solve for x
    x = 99,592.02/398
  6. Step 6: Final answer
    x = 250.23

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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.