Home / 260,780.24-391,150.92-83,306

Finding the Fourth Proportional to 260,780.24, 391,150.92 and 83,306

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Solution

The fourth proportional to 260,780.24, 391,150.92 and 83,306 is: 124,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,780.24 : 391,150.92 = 83,306 : x
  2. Step 2: Convert to fraction form
    260,780.24/391,150.92 = 83,306/x
  3. Step 3: Cross multiply
    260,780.24x = 391,150.92 × 83,306
  4. Step 4: Simplify right side
    260,780.24x = 32,585,218,541.52
  5. Step 5: Solve for x
    x = 32,585,218,541.52/260,780.24
  6. Step 6: Final answer
    x = 124,952.79

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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.