Home / 259,739.55-389,609.33-206,595.45

Finding the Fourth Proportional to 259,739.55, 389,609.33 and 206,595.45

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Solution

The fourth proportional to 259,739.55, 389,609.33 and 206,595.45 is: 309,893.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,739.55 : 389,609.33 = 206,595.45 : x
  2. Step 2: Convert to fraction form
    259,739.55/389,609.33 = 206,595.45/x
  3. Step 3: Cross multiply
    259,739.55x = 389,609.33 × 206,595.45
  4. Step 4: Simplify right side
    259,739.55x = 80,491,513,822.57
  5. Step 5: Solve for x
    x = 80,491,513,822.57/259,739.55
  6. Step 6: Final answer
    x = 309,893.18

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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.