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Finding the Fourth Proportional to 218,579.78, 327,960.43 and 104,670.29

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Solution

The fourth proportional to 218,579.78, 327,960.43 and 104,670.29 is: 157,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,579.78 : 327,960.43 = 104,670.29 : x
  2. Step 2: Convert to fraction form
    218,579.78/327,960.43 = 104,670.29/x
  3. Step 3: Cross multiply
    218,579.78x = 327,960.43 × 104,670.29
  4. Step 4: Simplify right side
    218,579.78x = 34,327,713,874.85
  5. Step 5: Solve for x
    x = 34,327,713,874.85/218,579.78
  6. Step 6: Final answer
    x = 157,048.90

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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.