Home / 258,709.14-388,110.71-106,906.58

Finding the Fourth Proportional to 258,709.14, 388,110.71 and 106,906.58

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Solution

The fourth proportional to 258,709.14, 388,110.71 and 106,906.58 is: 160,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,709.14 : 388,110.71 = 106,906.58 : x
  2. Step 2: Convert to fraction form
    258,709.14/388,110.71 = 106,906.58/x
  3. Step 3: Cross multiply
    258,709.14x = 388,110.71 × 106,906.58
  4. Step 4: Simplify right side
    258,709.14x = 41,491,589,637.75
  5. Step 5: Solve for x
    x = 41,491,589,637.75/258,709.14
  6. Step 6: Final answer
    x = 160,379.30

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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.