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Finding the Fourth Proportional to 300.40, 414.52 and 169.44

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Solution

The fourth proportional to 300.40, 414.52 and 169.44 is: 233.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.40 : 414.52 = 169.44 : x
  2. Step 2: Convert to fraction form
    300.40/414.52 = 169.44/x
  3. Step 3: Cross multiply
    300.40x = 414.52 × 169.44
  4. Step 4: Simplify right side
    300.40x = 70,236.27
  5. Step 5: Solve for x
    x = 70,236.27/300.40
  6. Step 6: Final answer
    x = 233.81

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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.