Home / 260,943.39-391,490.96-109,212.06

Finding the Fourth Proportional to 260,943.39, 391,490.96 and 109,212.06

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Solution

The fourth proportional to 260,943.39, 391,490.96 and 109,212.06 is: 163,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,943.39 : 391,490.96 = 109,212.06 : x
  2. Step 2: Convert to fraction form
    260,943.39/391,490.96 = 109,212.06/x
  3. Step 3: Cross multiply
    260,943.39x = 391,490.96 × 109,212.06
  4. Step 4: Simplify right side
    260,943.39x = 42,755,535,135.01
  5. Step 5: Solve for x
    x = 42,755,535,135.01/260,943.39
  6. Step 6: Final answer
    x = 163,849.85

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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.