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Finding the Fourth Proportional to 376,408.29, 563,874.30 and 218,304.66

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Solution

The fourth proportional to 376,408.29, 563,874.30 and 218,304.66 is: 327,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,408.29 : 563,874.30 = 218,304.66 : x
  2. Step 2: Convert to fraction form
    376,408.29/563,874.30 = 218,304.66/x
  3. Step 3: Cross multiply
    376,408.29x = 563,874.30 × 218,304.66
  4. Step 4: Simplify right side
    376,408.29x = 123,096,387,344.24
  5. Step 5: Solve for x
    x = 123,096,387,344.24/376,408.29
  6. Step 6: Final answer
    x = 327,028.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.