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Finding the Fourth Proportional to 629.03, 943.63 and 218.28

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Solution

The fourth proportional to 629.03, 943.63 and 218.28 is: 327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.03 : 943.63 = 218.28 : x
  2. Step 2: Convert to fraction form
    629.03/943.63 = 218.28/x
  3. Step 3: Cross multiply
    629.03x = 943.63 × 218.28
  4. Step 4: Simplify right side
    629.03x = 205,975.56
  5. Step 5: Solve for x
    x = 205,975.56/629.03
  6. Step 6: Final answer
    x = 327.45

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