Home / 259,862.27-389,807.38-82,383.12

Finding the Fourth Proportional to 259,862.27, 389,807.38 and 82,383.12

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Solution

The fourth proportional to 259,862.27, 389,807.38 and 82,383.12 is: 123,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,862.27 : 389,807.38 = 82,383.12 : x
  2. Step 2: Convert to fraction form
    259,862.27/389,807.38 = 82,383.12/x
  3. Step 3: Cross multiply
    259,862.27x = 389,807.38 × 82,383.12
  4. Step 4: Simplify right side
    259,862.27x = 32,113,548,163.43
  5. Step 5: Solve for x
    x = 32,113,548,163.43/259,862.27
  6. Step 6: Final answer
    x = 123,579.11

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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.