Home / 269,780.98-404,671.20-80,240.58

Finding the Fourth Proportional to 269,780.98, 404,671.20 and 80,240.58

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Solution

The fourth proportional to 269,780.98, 404,671.20 and 80,240.58 is: 120,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,780.98 : 404,671.20 = 80,240.58 : x
  2. Step 2: Convert to fraction form
    269,780.98/404,671.20 = 80,240.58/x
  3. Step 3: Cross multiply
    269,780.98x = 404,671.20 × 80,240.58
  4. Step 4: Simplify right side
    269,780.98x = 32,471,051,797.30
  5. Step 5: Solve for x
    x = 32,471,051,797.30/269,780.98
  6. Step 6: Final answer
    x = 120,360.79

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1.5x scale

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.