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Finding the Fourth Proportional to 376,709.88, 519,859.98 and 206,955

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Solution

The fourth proportional to 376,709.88, 519,859.98 and 206,955 is: 285,598.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,709.88 : 519,859.98 = 206,955 : x
  2. Step 2: Convert to fraction form
    376,709.88/519,859.98 = 206,955/x
  3. Step 3: Cross multiply
    376,709.88x = 519,859.98 × 206,955
  4. Step 4: Simplify right side
    376,709.88x = 107,587,622,160.90
  5. Step 5: Solve for x
    x = 107,587,622,160.90/376,709.88
  6. Step 6: Final answer
    x = 285,598.09

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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.