Home / 259,968.43-389,966.48-82,489.33

Finding the Fourth Proportional to 259,968.43, 389,966.48 and 82,489.33

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Solution

The fourth proportional to 259,968.43, 389,966.48 and 82,489.33 is: 123,738.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,968.43 : 389,966.48 = 82,489.33 : x
  2. Step 2: Convert to fraction form
    259,968.43/389,966.48 = 82,489.33/x
  3. Step 3: Cross multiply
    259,968.43x = 389,966.48 × 82,489.33
  4. Step 4: Simplify right side
    259,968.43x = 32,168,071,295.38
  5. Step 5: Solve for x
    x = 32,168,071,295.38/259,968.43
  6. Step 6: Final answer
    x = 123,738.38

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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.