Home / 259,221.25-388,984.97-109,451.85

Finding the Fourth Proportional to 259,221.25, 388,984.97 and 109,451.85

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Solution

The fourth proportional to 259,221.25, 388,984.97 and 109,451.85 is: 164,242.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,221.25 : 388,984.97 = 109,451.85 : x
  2. Step 2: Convert to fraction form
    259,221.25/388,984.97 = 109,451.85/x
  3. Step 3: Cross multiply
    259,221.25x = 388,984.97 × 109,451.85
  4. Step 4: Simplify right side
    259,221.25x = 42,575,124,588.69
  5. Step 5: Solve for x
    x = 42,575,124,588.69/259,221.25
  6. Step 6: Final answer
    x = 164,242.42

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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.