Home / 275,786.20-380,584.98-153,278.56

Finding the Fourth Proportional to 275,786.20, 380,584.98 and 153,278.56

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Solution

The fourth proportional to 275,786.20, 380,584.98 and 153,278.56 is: 211,524.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,786.20 : 380,584.98 = 153,278.56 : x
  2. Step 2: Convert to fraction form
    275,786.20/380,584.98 = 153,278.56/x
  3. Step 3: Cross multiply
    275,786.20x = 380,584.98 × 153,278.56
  4. Step 4: Simplify right side
    275,786.20x = 58,335,517,692.03
  5. Step 5: Solve for x
    x = 58,335,517,692.03/275,786.20
  6. Step 6: Final answer
    x = 211,524.43

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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.