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Finding the Fourth Proportional to 443,149.20, 664,270.20 and 218,163.60

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Solution

The fourth proportional to 443,149.20, 664,270.20 and 218,163.60 is: 327,022.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,149.20 : 664,270.20 = 218,163.60 : x
  2. Step 2: Convert to fraction form
    443,149.20/664,270.20 = 218,163.60/x
  3. Step 3: Cross multiply
    443,149.20x = 664,270.20 × 218,163.60
  4. Step 4: Simplify right side
    443,149.20x = 144,919,578,204.72
  5. Step 5: Solve for x
    x = 144,919,578,204.72/443,149.20
  6. Step 6: Final answer
    x = 327,022.09

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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.