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Finding the Fourth Proportional to 252,993.57, 379,366.39 and 84,456.06

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Solution

The fourth proportional to 252,993.57, 379,366.39 and 84,456.06 is: 126,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,993.57 : 379,366.39 = 84,456.06 : x
  2. Step 2: Convert to fraction form
    252,993.57/379,366.39 = 84,456.06/x
  3. Step 3: Cross multiply
    252,993.57x = 379,366.39 × 84,456.06
  4. Step 4: Simplify right side
    252,993.57x = 32,039,790,595.82
  5. Step 5: Solve for x
    x = 32,039,790,595.82/252,993.57
  6. Step 6: Final answer
    x = 126,642.71

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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.