Home / 259,534.36-389,267.88-82,059.28

Finding the Fourth Proportional to 259,534.36, 389,267.88 and 82,059.28

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Solution

The fourth proportional to 259,534.36, 389,267.88 and 82,059.28 is: 123,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,534.36 : 389,267.88 = 82,059.28 : x
  2. Step 2: Convert to fraction form
    259,534.36/389,267.88 = 82,059.28/x
  3. Step 3: Cross multiply
    259,534.36x = 389,267.88 × 82,059.28
  4. Step 4: Simplify right side
    259,534.36x = 31,943,041,959.93
  5. Step 5: Solve for x
    x = 31,943,041,959.93/259,534.36
  6. Step 6: Final answer
    x = 123,078.28

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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.