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Finding the Fourth Proportional to 629.00, 943.77 and 218.43

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Solution

The fourth proportional to 629.00, 943.77 and 218.43 is: 327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.00 : 943.77 = 218.43 : x
  2. Step 2: Convert to fraction form
    629.00/943.77 = 218.43/x
  3. Step 3: Cross multiply
    629.00x = 943.77 × 218.43
  4. Step 4: Simplify right side
    629.00x = 206,147.68
  5. Step 5: Solve for x
    x = 206,147.68/629.00
  6. Step 6: Final answer
    x = 327.74

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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.