Home / 259,882.23-389,878.43-82,365.87

Finding the Fourth Proportional to 259,882.23, 389,878.43 and 82,365.87

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Solution

The fourth proportional to 259,882.23, 389,878.43 and 82,365.87 is: 123,566.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,882.23 : 389,878.43 = 82,365.87 : x
  2. Step 2: Convert to fraction form
    259,882.23/389,878.43 = 82,365.87/x
  3. Step 3: Cross multiply
    259,882.23x = 389,878.43 × 82,365.87
  4. Step 4: Simplify right side
    259,882.23x = 32,112,675,669.35
  5. Step 5: Solve for x
    x = 32,112,675,669.35/259,882.23
  6. Step 6: Final answer
    x = 123,566.26

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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.