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Finding the Fourth Proportional to 636.73, 955.00 and 220.33

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Solution

The fourth proportional to 636.73, 955.00 and 220.33 is: 330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.73 : 955.00 = 220.33 : x
  2. Step 2: Convert to fraction form
    636.73/955.00 = 220.33/x
  3. Step 3: Cross multiply
    636.73x = 955.00 × 220.33
  4. Step 4: Simplify right side
    636.73x = 210,409.27
  5. Step 5: Solve for x
    x = 210,409.27/636.73
  6. Step 6: Final answer
    x = 330.46

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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.