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Finding the Fourth Proportional to 168.86, 251.99 and 150.63

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Solution

The fourth proportional to 168.86, 251.99 and 150.63 is: 224.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.86 : 251.99 = 150.63 : x
  2. Step 2: Convert to fraction form
    168.86/251.99 = 150.63/x
  3. Step 3: Cross multiply
    168.86x = 251.99 × 150.63
  4. Step 4: Simplify right side
    168.86x = 37,957.25
  5. Step 5: Solve for x
    x = 37,957.25/168.86
  6. Step 6: Final answer
    x = 224.79

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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.