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Finding the Fourth Proportional to 376,661.21, 519,796.14 and 206,895.35

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Solution

The fourth proportional to 376,661.21, 519,796.14 and 206,895.35 is: 285,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,661.21 : 519,796.14 = 206,895.35 : x
  2. Step 2: Convert to fraction form
    376,661.21/519,796.14 = 206,895.35/x
  3. Step 3: Cross multiply
    376,661.21x = 519,796.14 × 206,895.35
  4. Step 4: Simplify right side
    376,661.21x = 107,543,404,313.95
  5. Step 5: Solve for x
    x = 107,543,404,313.95/376,661.21
  6. Step 6: Final answer
    x = 285,517.60

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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.