Home / 231,810.88-319,584.92-198,180.64

Finding the Fourth Proportional to 231,810.88, 319,584.92 and 198,180.64

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Solution

The fourth proportional to 231,810.88, 319,584.92 and 198,180.64 is: 273,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,810.88 : 319,584.92 = 198,180.64 : x
  2. Step 2: Convert to fraction form
    231,810.88/319,584.92 = 198,180.64/x
  3. Step 3: Cross multiply
    231,810.88x = 319,584.92 × 198,180.64
  4. Step 4: Simplify right side
    231,810.88x = 63,335,543,979.95
  5. Step 5: Solve for x
    x = 63,335,543,979.95/231,810.88
  6. Step 6: Final answer
    x = 273,220.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.