Home / 263,371.96-395,098.98-85,837.78

Finding the Fourth Proportional to 263,371.96, 395,098.98 and 85,837.78

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Solution

The fourth proportional to 263,371.96, 395,098.98 and 85,837.78 is: 128,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,371.96 : 395,098.98 = 85,837.78 : x
  2. Step 2: Convert to fraction form
    263,371.96/395,098.98 = 85,837.78/x
  3. Step 3: Cross multiply
    263,371.96x = 395,098.98 × 85,837.78
  4. Step 4: Simplify right side
    263,371.96x = 33,914,419,323.46
  5. Step 5: Solve for x
    x = 33,914,419,323.46/263,371.96
  6. Step 6: Final answer
    x = 128,770.05

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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.