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Finding the Fourth Proportional to 300.59, 414.85 and 169.61

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Solution

The fourth proportional to 300.59, 414.85 and 169.61 is: 234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.59 : 414.85 = 169.61 : x
  2. Step 2: Convert to fraction form
    300.59/414.85 = 169.61/x
  3. Step 3: Cross multiply
    300.59x = 414.85 × 169.61
  4. Step 4: Simplify right side
    300.59x = 70,360.21
  5. Step 5: Solve for x
    x = 70,360.21/300.59
  6. Step 6: Final answer
    x = 234.08

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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.