Home / 259,442.22-389,131.12-69,917.41

Finding the Fourth Proportional to 259,442.22, 389,131.12 and 69,917.41

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Solution

The fourth proportional to 259,442.22, 389,131.12 and 69,917.41 is: 104,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,442.22 : 389,131.12 = 69,917.41 : x
  2. Step 2: Convert to fraction form
    259,442.22/389,131.12 = 69,917.41/x
  3. Step 3: Cross multiply
    259,442.22x = 389,131.12 × 69,917.41
  4. Step 4: Simplify right side
    259,442.22x = 27,207,040,634.61
  5. Step 5: Solve for x
    x = 27,207,040,634.61/259,442.22
  6. Step 6: Final answer
    x = 104,867.44

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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.