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Finding the Fourth Proportional to 300.92, 415.25 and 169.93

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Solution

The fourth proportional to 300.92, 415.25 and 169.93 is: 234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.92 : 415.25 = 169.93 : x
  2. Step 2: Convert to fraction form
    300.92/415.25 = 169.93/x
  3. Step 3: Cross multiply
    300.92x = 415.25 × 169.93
  4. Step 4: Simplify right side
    300.92x = 70,560.51
  5. Step 5: Solve for x
    x = 70,560.51/300.92
  6. Step 6: Final answer
    x = 234.48

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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.