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Finding the Fourth Proportional to 168.95, 252.33 and 153.83

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Solution

The fourth proportional to 168.95, 252.33 and 153.83 is: 229.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.95 : 252.33 = 153.83 : x
  2. Step 2: Convert to fraction form
    168.95/252.33 = 153.83/x
  3. Step 3: Cross multiply
    168.95x = 252.33 × 153.83
  4. Step 4: Simplify right side
    168.95x = 38,815.92
  5. Step 5: Solve for x
    x = 38,815.92/168.95
  6. Step 6: Final answer
    x = 229.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.