Home / 260,760.20-391,043.10-92,215.40

Finding the Fourth Proportional to 260,760.20, 391,043.10 and 92,215.40

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Solution

The fourth proportional to 260,760.20, 391,043.10 and 92,215.40 is: 138,288.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,760.20 : 391,043.10 = 92,215.40 : x
  2. Step 2: Convert to fraction form
    260,760.20/391,043.10 = 92,215.40/x
  3. Step 3: Cross multiply
    260,760.20x = 391,043.10 × 92,215.40
  4. Step 4: Simplify right side
    260,760.20x = 36,060,195,883.74
  5. Step 5: Solve for x
    x = 36,060,195,883.74/260,760.20
  6. Step 6: Final answer
    x = 138,288.73

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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.