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Finding the Fourth Proportional to 163.18, 225.10 and 110.73

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Solution

The fourth proportional to 163.18, 225.10 and 110.73 is: 152.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.18 : 225.10 = 110.73 : x
  2. Step 2: Convert to fraction form
    163.18/225.10 = 110.73/x
  3. Step 3: Cross multiply
    163.18x = 225.10 × 110.73
  4. Step 4: Simplify right side
    163.18x = 24,924.72
  5. Step 5: Solve for x
    x = 24,924.72/163.18
  6. Step 6: Final answer
    x = 152.74

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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.