Home / 259,220.25-388,983.47-109,450.85

Finding the Fourth Proportional to 259,220.25, 388,983.47 and 109,450.85

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Solution

The fourth proportional to 259,220.25, 388,983.47 and 109,450.85 is: 164,240.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,220.25 : 388,983.47 = 109,450.85 : x
  2. Step 2: Convert to fraction form
    259,220.25/388,983.47 = 109,450.85/x
  3. Step 3: Cross multiply
    259,220.25x = 388,983.47 × 109,450.85
  4. Step 4: Simplify right side
    259,220.25x = 42,574,568,935.28
  5. Step 5: Solve for x
    x = 42,574,568,935.28/259,220.25
  6. Step 6: Final answer
    x = 164,240.91

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1.5x scale

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.