Home / 259,932.22-389,011.20-217,859.83

Finding the Fourth Proportional to 259,932.22, 389,011.20 and 217,859.83

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Solution

The fourth proportional to 259,932.22, 389,011.20 and 217,859.83 is: 326,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,932.22 : 389,011.20 = 217,859.83 : x
  2. Step 2: Convert to fraction form
    259,932.22/389,011.20 = 217,859.83/x
  3. Step 3: Cross multiply
    259,932.22x = 389,011.20 × 217,859.83
  4. Step 4: Simplify right side
    259,932.22x = 84,749,913,900.10
  5. Step 5: Solve for x
    x = 84,749,913,900.10/259,932.22
  6. Step 6: Final answer
    x = 326,046.21

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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.