Home / 260,650.13-391,054.14-108,920.86

Finding the Fourth Proportional to 260,650.13, 391,054.14 and 108,920.86

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Solution

The fourth proportional to 260,650.13, 391,054.14 and 108,920.86 is: 163,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,650.13 : 391,054.14 = 108,920.86 : x
  2. Step 2: Convert to fraction form
    260,650.13/391,054.14 = 108,920.86/x
  3. Step 3: Cross multiply
    260,650.13x = 391,054.14 × 108,920.86
  4. Step 4: Simplify right side
    260,650.13x = 42,593,951,171.71
  5. Step 5: Solve for x
    x = 42,593,951,171.71/260,650.13
  6. Step 6: Final answer
    x = 163,414.27

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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.