Home / 259,940.22-389,023.20-217,867.80

Finding the Fourth Proportional to 259,940.22, 389,023.20 and 217,867.80

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Solution

The fourth proportional to 259,940.22, 389,023.20 and 217,867.80 is: 326,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,940.22 : 389,023.20 = 217,867.80 : x
  2. Step 2: Convert to fraction form
    259,940.22/389,023.20 = 217,867.80/x
  3. Step 3: Cross multiply
    259,940.22x = 389,023.20 × 217,867.80
  4. Step 4: Simplify right side
    259,940.22x = 84,755,628,732.96
  5. Step 5: Solve for x
    x = 84,755,628,732.96/259,940.22
  6. Step 6: Final answer
    x = 326,058.16

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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.