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Finding the Fourth Proportional to 168.71, 251.58 and 150.49

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Solution

The fourth proportional to 168.71, 251.58 and 150.49 is: 224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.71 : 251.58 = 150.49 : x
  2. Step 2: Convert to fraction form
    168.71/251.58 = 150.49/x
  3. Step 3: Cross multiply
    168.71x = 251.58 × 150.49
  4. Step 4: Simplify right side
    168.71x = 37,858.26
  5. Step 5: Solve for x
    x = 37,858.26/168.71
  6. Step 6: Final answer
    x = 224.40

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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.