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Finding the Fourth Proportional to 376,074, 518,997.48 and 217,098

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Solution

The fourth proportional to 376,074, 518,997.48 and 217,098 is: 299,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,074 : 518,997.48 = 217,098 : x
  2. Step 2: Convert to fraction form
    376,074/518,997.48 = 217,098/x
  3. Step 3: Cross multiply
    376,074x = 518,997.48 × 217,098
  4. Step 4: Simplify right side
    376,074x = 112,673,314,913.04
  5. Step 5: Solve for x
    x = 112,673,314,913.04/376,074
  6. Step 6: Final answer
    x = 299,604.11

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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.