Home / 259,932.22-389,011.20-217,859.80

Finding the Fourth Proportional to 259,932.22, 389,011.20 and 217,859.80

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Solution

The fourth proportional to 259,932.22, 389,011.20 and 217,859.80 is: 326,046.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,932.22 : 389,011.20 = 217,859.80 : x
  2. Step 2: Convert to fraction form
    259,932.22/389,011.20 = 217,859.80/x
  3. Step 3: Cross multiply
    259,932.22x = 389,011.20 × 217,859.80
  4. Step 4: Simplify right side
    259,932.22x = 84,749,902,229.76
  5. Step 5: Solve for x
    x = 84,749,902,229.76/259,932.22
  6. Step 6: Final answer
    x = 326,046.16

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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.