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Finding the Fourth Proportional to 216.95, 325.44 and 202.73

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Solution

The fourth proportional to 216.95, 325.44 and 202.73 is: 304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.95 : 325.44 = 202.73 : x
  2. Step 2: Convert to fraction form
    216.95/325.44 = 202.73/x
  3. Step 3: Cross multiply
    216.95x = 325.44 × 202.73
  4. Step 4: Simplify right side
    216.95x = 65,974.82
  5. Step 5: Solve for x
    x = 65,974.82/216.95
  6. Step 6: Final answer
    x = 304.11

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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.