Home / 263,406.20-395,198-83,520.96

Finding the Fourth Proportional to 263,406.20, 395,198 and 83,520.96

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Solution

The fourth proportional to 263,406.20, 395,198 and 83,520.96 is: 125,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,406.20 : 395,198 = 83,520.96 : x
  2. Step 2: Convert to fraction form
    263,406.20/395,198 = 83,520.96/x
  3. Step 3: Cross multiply
    263,406.20x = 395,198 × 83,520.96
  4. Step 4: Simplify right side
    263,406.20x = 33,007,316,350.08
  5. Step 5: Solve for x
    x = 33,007,316,350.08/263,406.20
  6. Step 6: Final answer
    x = 125,309.57

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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.