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Finding the Fourth Proportional to 169.49, 254.33 and 73.29

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Solution

The fourth proportional to 169.49, 254.33 and 73.29 is: 109.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.49 : 254.33 = 73.29 : x
  2. Step 2: Convert to fraction form
    169.49/254.33 = 73.29/x
  3. Step 3: Cross multiply
    169.49x = 254.33 × 73.29
  4. Step 4: Simplify right side
    169.49x = 18,639.48
  5. Step 5: Solve for x
    x = 18,639.48/169.49
  6. Step 6: Final answer
    x = 109.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.