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Finding the Fourth Proportional to 309.38, 463.54 and 162.92

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Solution

The fourth proportional to 309.38, 463.54 and 162.92 is: 244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    309.38 : 463.54 = 162.92 : x
  2. Step 2: Convert to fraction form
    309.38/463.54 = 162.92/x
  3. Step 3: Cross multiply
    309.38x = 463.54 × 162.92
  4. Step 4: Simplify right side
    309.38x = 75,517.21
  5. Step 5: Solve for x
    x = 75,517.21/309.38
  6. Step 6: Final answer
    x = 244.09

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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.