Home / 443,324.40-664,549.20-218,500.80

Finding the Fourth Proportional to 443,324.40, 664,549.20 and 218,500.80

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Solution

The fourth proportional to 443,324.40, 664,549.20 and 218,500.80 is: 327,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,324.40 : 664,549.20 = 218,500.80 : x
  2. Step 2: Convert to fraction form
    443,324.40/664,549.20 = 218,500.80/x
  3. Step 3: Cross multiply
    443,324.40x = 664,549.20 × 218,500.80
  4. Step 4: Simplify right side
    443,324.40x = 145,204,531,839.36
  5. Step 5: Solve for x
    x = 145,204,531,839.36/443,324.40
  6. Step 6: Final answer
    x = 327,535.62

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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.