Home / 259,916.58-389,923.48-82,375.92

Finding the Fourth Proportional to 259,916.58, 389,923.48 and 82,375.92

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Solution

The fourth proportional to 259,916.58, 389,923.48 and 82,375.92 is: 123,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,916.58 : 389,923.48 = 82,375.92 : x
  2. Step 2: Convert to fraction form
    259,916.58/389,923.48 = 82,375.92/x
  3. Step 3: Cross multiply
    259,916.58x = 389,923.48 × 82,375.92
  4. Step 4: Simplify right side
    259,916.58x = 32,120,305,394.60
  5. Step 5: Solve for x
    x = 32,120,305,394.60/259,916.58
  6. Step 6: Final answer
    x = 123,579.29

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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.