Home / 259,918.58-389,926.48-82,377.92

Finding the Fourth Proportional to 259,918.58, 389,926.48 and 82,377.92

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Solution

The fourth proportional to 259,918.58, 389,926.48 and 82,377.92 is: 123,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,918.58 : 389,926.48 = 82,377.92 : x
  2. Step 2: Convert to fraction form
    259,918.58/389,926.48 = 82,377.92/x
  3. Step 3: Cross multiply
    259,918.58x = 389,926.48 × 82,377.92
  4. Step 4: Simplify right side
    259,918.58x = 32,121,332,375.32
  5. Step 5: Solve for x
    x = 32,121,332,375.32/259,918.58
  6. Step 6: Final answer
    x = 123,582.29

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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.