Home / 260,812.20-391,121.10-92,267.40

Finding the Fourth Proportional to 260,812.20, 391,121.10 and 92,267.40

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Solution

The fourth proportional to 260,812.20, 391,121.10 and 92,267.40 is: 138,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,812.20 : 391,121.10 = 92,267.40 : x
  2. Step 2: Convert to fraction form
    260,812.20/391,121.10 = 92,267.40/x
  3. Step 3: Cross multiply
    260,812.20x = 391,121.10 × 92,267.40
  4. Step 4: Simplify right side
    260,812.20x = 36,087,726,982.14
  5. Step 5: Solve for x
    x = 36,087,726,982.14/260,812.20
  6. Step 6: Final answer
    x = 138,366.71

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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.