Home / 214,622.20-321,805.30-131,575.80

Finding the Fourth Proportional to 214,622.20, 321,805.30 and 131,575.80

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Solution

The fourth proportional to 214,622.20, 321,805.30 and 131,575.80 is: 197,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,622.20 : 321,805.30 = 131,575.80 : x
  2. Step 2: Convert to fraction form
    214,622.20/321,805.30 = 131,575.80/x
  3. Step 3: Cross multiply
    214,622.20x = 321,805.30 × 131,575.80
  4. Step 4: Simplify right side
    214,622.20x = 42,341,789,791.74
  5. Step 5: Solve for x
    x = 42,341,789,791.74/214,622.20
  6. Step 6: Final answer
    x = 197,285.23

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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.