Home / 275,213.27-379,619.49-198,844.58

Finding the Fourth Proportional to 275,213.27, 379,619.49 and 198,844.58

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Solution

The fourth proportional to 275,213.27, 379,619.49 and 198,844.58 is: 274,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,213.27 : 379,619.49 = 198,844.58 : x
  2. Step 2: Convert to fraction form
    275,213.27/379,619.49 = 198,844.58/x
  3. Step 3: Cross multiply
    275,213.27x = 379,619.49 × 198,844.58
  4. Step 4: Simplify right side
    275,213.27x = 75,485,278,048.86
  5. Step 5: Solve for x
    x = 75,485,278,048.86/275,213.27
  6. Step 6: Final answer
    x = 274,279.21

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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.