Home / 312,698.28-431,531.82-191,906.52

Finding the Fourth Proportional to 312,698.28, 431,531.82 and 191,906.52

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Solution

The fourth proportional to 312,698.28, 431,531.82 and 191,906.52 is: 264,836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,698.28 : 431,531.82 = 191,906.52 : x
  2. Step 2: Convert to fraction form
    312,698.28/431,531.82 = 191,906.52/x
  3. Step 3: Cross multiply
    312,698.28x = 431,531.82 × 191,906.52
  4. Step 4: Simplify right side
    312,698.28x = 82,813,769,845.47
  5. Step 5: Solve for x
    x = 82,813,769,845.47/312,698.28
  6. Step 6: Final answer
    x = 264,836.03

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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.