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Finding the Fourth Proportional to 163.41, 225.50 and 97.02

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Solution

The fourth proportional to 163.41, 225.50 and 97.02 is: 133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.41 : 225.50 = 97.02 : x
  2. Step 2: Convert to fraction form
    163.41/225.50 = 97.02/x
  3. Step 3: Cross multiply
    163.41x = 225.50 × 97.02
  4. Step 4: Simplify right side
    163.41x = 21,877.52
  5. Step 5: Solve for x
    x = 21,877.52/163.41
  6. Step 6: Final answer
    x = 133.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.