Home / 259,040.25-388,542.56-159,215.85

Finding the Fourth Proportional to 259,040.25, 388,542.56 and 159,215.85

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Solution

The fourth proportional to 259,040.25, 388,542.56 and 159,215.85 is: 238,812.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,040.25 : 388,542.56 = 159,215.85 : x
  2. Step 2: Convert to fraction form
    259,040.25/388,542.56 = 159,215.85/x
  3. Step 3: Cross multiply
    259,040.25x = 388,542.56 × 159,215.85
  4. Step 4: Simplify right side
    259,040.25x = 61,862,133,155.50
  5. Step 5: Solve for x
    x = 61,862,133,155.50/259,040.25
  6. Step 6: Final answer
    x = 238,812.82

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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.