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Finding the Fourth Proportional to 371,861.38, 512,993.43 and 269,662.64

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Solution

The fourth proportional to 371,861.38, 512,993.43 and 269,662.64 is: 372,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,861.38 : 512,993.43 = 269,662.64 : x
  2. Step 2: Convert to fraction form
    371,861.38/512,993.43 = 269,662.64/x
  3. Step 3: Cross multiply
    371,861.38x = 512,993.43 × 269,662.64
  4. Step 4: Simplify right side
    371,861.38x = 138,335,163,641.44
  5. Step 5: Solve for x
    x = 138,335,163,641.44/371,861.38
  6. Step 6: Final answer
    x = 372,007.34

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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.