Home / 259,331.10-389,049.06-109,571.82

Finding the Fourth Proportional to 259,331.10, 389,049.06 and 109,571.82

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Solution

The fourth proportional to 259,331.10, 389,049.06 and 109,571.82 is: 164,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,331.10 : 389,049.06 = 109,571.82 : x
  2. Step 2: Convert to fraction form
    259,331.10/389,049.06 = 109,571.82/x
  3. Step 3: Cross multiply
    259,331.10x = 389,049.06 × 109,571.82
  4. Step 4: Simplify right side
    259,331.10x = 42,628,813,573.49
  5. Step 5: Solve for x
    x = 42,628,813,573.49/259,331.10
  6. Step 6: Final answer
    x = 164,379.87

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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.