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Finding the Fourth Proportional to 249.92, 346.46 and 236.74

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Solution

The fourth proportional to 249.92, 346.46 and 236.74 is: 328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.92 : 346.46 = 236.74 : x
  2. Step 2: Convert to fraction form
    249.92/346.46 = 236.74/x
  3. Step 3: Cross multiply
    249.92x = 346.46 × 236.74
  4. Step 4: Simplify right side
    249.92x = 82,020.94
  5. Step 5: Solve for x
    x = 82,020.94/249.92
  6. Step 6: Final answer
    x = 328.19

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.