Home / 259,976.96-389,964.39-82,497.80

Finding the Fourth Proportional to 259,976.96, 389,964.39 and 82,497.80

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Solution

The fourth proportional to 259,976.96, 389,964.39 and 82,497.80 is: 123,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,976.96 : 389,964.39 = 82,497.80 : x
  2. Step 2: Convert to fraction form
    259,976.96/389,964.39 = 82,497.80/x
  3. Step 3: Cross multiply
    259,976.96x = 389,964.39 × 82,497.80
  4. Step 4: Simplify right side
    259,976.96x = 32,171,202,303.52
  5. Step 5: Solve for x
    x = 32,171,202,303.52/259,976.96
  6. Step 6: Final answer
    x = 123,746.36

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1.5x scale

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.