Home / 259,610.76-389,464.20-82,162.44

Finding the Fourth Proportional to 259,610.76, 389,464.20 and 82,162.44

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Solution

The fourth proportional to 259,610.76, 389,464.20 and 82,162.44 is: 123,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,610.76 : 389,464.20 = 82,162.44 : x
  2. Step 2: Convert to fraction form
    259,610.76/389,464.20 = 82,162.44/x
  3. Step 3: Cross multiply
    259,610.76x = 389,464.20 × 82,162.44
  4. Step 4: Simplify right side
    259,610.76x = 31,999,328,964.65
  5. Step 5: Solve for x
    x = 31,999,328,964.65/259,610.76
  6. Step 6: Final answer
    x = 123,258.87

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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.