Home / 214,645.20-321,839.80-131,598.80

Finding the Fourth Proportional to 214,645.20, 321,839.80 and 131,598.80

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Solution

The fourth proportional to 214,645.20, 321,839.80 and 131,598.80 is: 197,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,645.20 : 321,839.80 = 131,598.80 : x
  2. Step 2: Convert to fraction form
    214,645.20/321,839.80 = 131,598.80/x
  3. Step 3: Cross multiply
    214,645.20x = 321,839.80 × 131,598.80
  4. Step 4: Simplify right side
    214,645.20x = 42,353,731,472.24
  5. Step 5: Solve for x
    x = 42,353,731,472.24/214,645.20
  6. Step 6: Final answer
    x = 197,319.72

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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.