Home / 259,928.22-389,005.23-217,855.80

Finding the Fourth Proportional to 259,928.22, 389,005.23 and 217,855.80

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Solution

The fourth proportional to 259,928.22, 389,005.23 and 217,855.80 is: 326,040.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,928.22 : 389,005.23 = 217,855.80 : x
  2. Step 2: Convert to fraction form
    259,928.22/389,005.23 = 217,855.80/x
  3. Step 3: Cross multiply
    259,928.22x = 389,005.23 × 217,855.80
  4. Step 4: Simplify right side
    259,928.22x = 84,747,045,585.83
  5. Step 5: Solve for x
    x = 84,747,045,585.83/259,928.22
  6. Step 6: Final answer
    x = 326,040.19

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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.