Home / 260,703.32-391,202.92-140,758.68

Finding the Fourth Proportional to 260,703.32, 391,202.92 and 140,758.68

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Solution

The fourth proportional to 260,703.32, 391,202.92 and 140,758.68 is: 211,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,703.32 : 391,202.92 = 140,758.68 : x
  2. Step 2: Convert to fraction form
    260,703.32/391,202.92 = 140,758.68/x
  3. Step 3: Cross multiply
    260,703.32x = 391,202.92 × 140,758.68
  4. Step 4: Simplify right side
    260,703.32x = 55,065,206,631.35
  5. Step 5: Solve for x
    x = 55,065,206,631.35/260,703.32
  6. Step 6: Final answer
    x = 211,217.90

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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.