Home / 214,945.70-321,653.10-187,170.80

Finding the Fourth Proportional to 214,945.70, 321,653.10 and 187,170.80

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Solution

The fourth proportional to 214,945.70, 321,653.10 and 187,170.80 is: 280,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,945.70 : 321,653.10 = 187,170.80 : x
  2. Step 2: Convert to fraction form
    214,945.70/321,653.10 = 187,170.80/x
  3. Step 3: Cross multiply
    214,945.70x = 321,653.10 × 187,170.80
  4. Step 4: Simplify right side
    214,945.70x = 60,204,068,049.48
  5. Step 5: Solve for x
    x = 60,204,068,049.48/214,945.70
  6. Step 6: Final answer
    x = 280,089.66

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1.5x scale

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.