Home / 260,834.10-391,251.15-127,645.80

Finding the Fourth Proportional to 260,834.10, 391,251.15 and 127,645.80

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Solution

The fourth proportional to 260,834.10, 391,251.15 and 127,645.80 is: 191,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,834.10 : 391,251.15 = 127,645.80 : x
  2. Step 2: Convert to fraction form
    260,834.10/391,251.15 = 127,645.80/x
  3. Step 3: Cross multiply
    260,834.10x = 391,251.15 × 127,645.80
  4. Step 4: Simplify right side
    260,834.10x = 49,941,566,042.67
  5. Step 5: Solve for x
    x = 49,941,566,042.67/260,834.10
  6. Step 6: Final answer
    x = 191,468.70

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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.