Home / 321,553.06-481,909.13-131,791.25

Finding the Fourth Proportional to 321,553.06, 481,909.13 and 131,791.25

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Solution

The fourth proportional to 321,553.06, 481,909.13 and 131,791.25 is: 197,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,553.06 : 481,909.13 = 131,791.25 : x
  2. Step 2: Convert to fraction form
    321,553.06/481,909.13 = 131,791.25/x
  3. Step 3: Cross multiply
    321,553.06x = 481,909.13 × 131,791.25
  4. Step 4: Simplify right side
    321,553.06x = 63,511,407,174.93
  5. Step 5: Solve for x
    x = 63,511,407,174.93/321,553.06
  6. Step 6: Final answer
    x = 197,514.55

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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.