Home / 259,891.20-389,393.04-141,350.88

Finding the Fourth Proportional to 259,891.20, 389,393.04 and 141,350.88

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Solution

The fourth proportional to 259,891.20, 389,393.04 and 141,350.88 is: 211,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,891.20 : 389,393.04 = 141,350.88 : x
  2. Step 2: Convert to fraction form
    259,891.20/389,393.04 = 141,350.88/x
  3. Step 3: Cross multiply
    259,891.20x = 389,393.04 × 141,350.88
  4. Step 4: Simplify right side
    259,891.20x = 55,041,048,869.88
  5. Step 5: Solve for x
    x = 55,041,048,869.88/259,891.20
  6. Step 6: Final answer
    x = 211,784.97

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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.