Home / 214,936.70-321,639.60-187,161.80

Finding the Fourth Proportional to 214,936.70, 321,639.60 and 187,161.80

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Solution

The fourth proportional to 214,936.70, 321,639.60 and 187,161.80 is: 280,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,936.70 : 321,639.60 = 187,161.80 : x
  2. Step 2: Convert to fraction form
    214,936.70/321,639.60 = 187,161.80/x
  3. Step 3: Cross multiply
    214,936.70x = 321,639.60 × 187,161.80
  4. Step 4: Simplify right side
    214,936.70x = 60,198,646,487.28
  5. Step 5: Solve for x
    x = 60,198,646,487.28/214,936.70
  6. Step 6: Final answer
    x = 280,076.16

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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.