Home / 396,942.12-547,804.62-227,172.60

Finding the Fourth Proportional to 396,942.12, 547,804.62 and 227,172.60

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Solution

The fourth proportional to 396,942.12, 547,804.62 and 227,172.60 is: 313,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,942.12 : 547,804.62 = 227,172.60 : x
  2. Step 2: Convert to fraction form
    396,942.12/547,804.62 = 227,172.60/x
  3. Step 3: Cross multiply
    396,942.12x = 547,804.62 × 227,172.60
  4. Step 4: Simplify right side
    396,942.12x = 124,446,199,817.41
  5. Step 5: Solve for x
    x = 124,446,199,817.41/396,942.12
  6. Step 6: Final answer
    x = 313,512.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.