Home / 443,136.09-664,561.96-143,544.43

Finding the Fourth Proportional to 443,136.09, 664,561.96 and 143,544.43

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Solution

The fourth proportional to 443,136.09, 664,561.96 and 143,544.43 is: 215,270.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,136.09 : 664,561.96 = 143,544.43 : x
  2. Step 2: Convert to fraction form
    443,136.09/664,561.96 = 143,544.43/x
  3. Step 3: Cross multiply
    443,136.09x = 664,561.96 × 143,544.43
  4. Step 4: Simplify right side
    443,136.09x = 95,394,167,747.88
  5. Step 5: Solve for x
    x = 95,394,167,747.88/443,136.09
  6. Step 6: Final answer
    x = 215,270.59

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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.