Home / 397,149.73-548,072.13-215,861.56

Finding the Fourth Proportional to 397,149.73, 548,072.13 and 215,861.56

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Solution

The fourth proportional to 397,149.73, 548,072.13 and 215,861.56 is: 297,891.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,149.73 : 548,072.13 = 215,861.56 : x
  2. Step 2: Convert to fraction form
    397,149.73/548,072.13 = 215,861.56/x
  3. Step 3: Cross multiply
    397,149.73x = 548,072.13 × 215,861.56
  4. Step 4: Simplify right side
    397,149.73x = 118,307,704,974.32
  5. Step 5: Solve for x
    x = 118,307,704,974.32/397,149.73
  6. Step 6: Final answer
    x = 297,891.94

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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.