Home / 214,930.70-321,630.60-187,155.80

Finding the Fourth Proportional to 214,930.70, 321,630.60 and 187,155.80

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Solution

The fourth proportional to 214,930.70, 321,630.60 and 187,155.80 is: 280,067.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,930.70 : 321,630.60 = 187,155.80 : x
  2. Step 2: Convert to fraction form
    214,930.70/321,630.60 = 187,155.80/x
  3. Step 3: Cross multiply
    214,930.70x = 321,630.60 × 187,155.80
  4. Step 4: Simplify right side
    214,930.70x = 60,195,032,247.48
  5. Step 5: Solve for x
    x = 60,195,032,247.48/214,930.70
  6. Step 6: Final answer
    x = 280,067.17

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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.