Home / 263,944.10-395,912.55-86,456.90

Finding the Fourth Proportional to 263,944.10, 395,912.55 and 86,456.90

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Solution

The fourth proportional to 263,944.10, 395,912.55 and 86,456.90 is: 129,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,944.10 : 395,912.55 = 86,456.90 : x
  2. Step 2: Convert to fraction form
    263,944.10/395,912.55 = 86,456.90/x
  3. Step 3: Cross multiply
    263,944.10x = 395,912.55 × 86,456.90
  4. Step 4: Simplify right side
    263,944.10x = 34,229,371,744.10
  5. Step 5: Solve for x
    x = 34,229,371,744.10/263,944.10
  6. Step 6: Final answer
    x = 129,684.17

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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.