Home / 259,932.72-389,895.96-82,441.26

Finding the Fourth Proportional to 259,932.72, 389,895.96 and 82,441.26

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Solution

The fourth proportional to 259,932.72, 389,895.96 and 82,441.26 is: 123,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,932.72 : 389,895.96 = 82,441.26 : x
  2. Step 2: Convert to fraction form
    259,932.72/389,895.96 = 82,441.26/x
  3. Step 3: Cross multiply
    259,932.72x = 389,895.96 × 82,441.26
  4. Step 4: Simplify right side
    259,932.72x = 32,143,514,211.31
  5. Step 5: Solve for x
    x = 32,143,514,211.31/259,932.72
  6. Step 6: Final answer
    x = 123,660.90

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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.