Home / 231,721.75-347,584.75-91,480.38

Finding the Fourth Proportional to 231,721.75, 347,584.75 and 91,480.38

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Solution

The fourth proportional to 231,721.75, 347,584.75 and 91,480.38 is: 137,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,721.75 : 347,584.75 = 91,480.38 : x
  2. Step 2: Convert to fraction form
    231,721.75/347,584.75 = 91,480.38/x
  3. Step 3: Cross multiply
    231,721.75x = 347,584.75 × 91,480.38
  4. Step 4: Simplify right side
    231,721.75x = 31,797,185,012.21
  5. Step 5: Solve for x
    x = 31,797,185,012.21/231,721.75
  6. Step 6: Final answer
    x = 137,221.41

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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.