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Finding the Fourth Proportional to 627.51, 940.97 and 216.54

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Solution

The fourth proportional to 627.51, 940.97 and 216.54 is: 324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.51 : 940.97 = 216.54 : x
  2. Step 2: Convert to fraction form
    627.51/940.97 = 216.54/x
  3. Step 3: Cross multiply
    627.51x = 940.97 × 216.54
  4. Step 4: Simplify right side
    627.51x = 203,756.56
  5. Step 5: Solve for x
    x = 203,756.56/627.51
  6. Step 6: Final answer
    x = 324.71

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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.