Home / 259,882.69-389,837.99-82,403.54

Finding the Fourth Proportional to 259,882.69, 389,837.99 and 82,403.54

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Solution

The fourth proportional to 259,882.69, 389,837.99 and 82,403.54 is: 123,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,882.69 : 389,837.99 = 82,403.54 : x
  2. Step 2: Convert to fraction form
    259,882.69/389,837.99 = 82,403.54/x
  3. Step 3: Cross multiply
    259,882.69x = 389,837.99 × 82,403.54
  4. Step 4: Simplify right side
    259,882.69x = 32,124,030,402.48
  5. Step 5: Solve for x
    x = 32,124,030,402.48/259,882.69
  6. Step 6: Final answer
    x = 123,609.73

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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.