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Finding the Fourth Proportional to 163.29, 225.42 and 110.82

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Solution

The fourth proportional to 163.29, 225.42 and 110.82 is: 152.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.29 : 225.42 = 110.82 : x
  2. Step 2: Convert to fraction form
    163.29/225.42 = 110.82/x
  3. Step 3: Cross multiply
    163.29x = 225.42 × 110.82
  4. Step 4: Simplify right side
    163.29x = 24,981.04
  5. Step 5: Solve for x
    x = 24,981.04/163.29
  6. Step 6: Final answer
    x = 152.99

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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.