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Finding the Fourth Proportional to 167.55, 250.10 and 144.47

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Solution

The fourth proportional to 167.55, 250.10 and 144.47 is: 215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.55 : 250.10 = 144.47 : x
  2. Step 2: Convert to fraction form
    167.55/250.10 = 144.47/x
  3. Step 3: Cross multiply
    167.55x = 250.10 × 144.47
  4. Step 4: Simplify right side
    167.55x = 36,129.97
  5. Step 5: Solve for x
    x = 36,129.97/167.55
  6. Step 6: Final answer
    x = 215.64

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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.