Home / 259,947.68-389,958.66-80,048.30

Finding the Fourth Proportional to 259,947.68, 389,958.66 and 80,048.30

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Solution

The fourth proportional to 259,947.68, 389,958.66 and 80,048.30 is: 120,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,947.68 : 389,958.66 = 80,048.30 : x
  2. Step 2: Convert to fraction form
    259,947.68/389,958.66 = 80,048.30/x
  3. Step 3: Cross multiply
    259,947.68x = 389,958.66 × 80,048.30
  4. Step 4: Simplify right side
    259,947.68x = 31,215,527,803.28
  5. Step 5: Solve for x
    x = 31,215,527,803.28/259,947.68
  6. Step 6: Final answer
    x = 120,083.89

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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.