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Finding the Fourth Proportional to 636.92, 955.82 and 226.06

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Solution

The fourth proportional to 636.92, 955.82 and 226.06 is: 339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.92 : 955.82 = 226.06 : x
  2. Step 2: Convert to fraction form
    636.92/955.82 = 226.06/x
  3. Step 3: Cross multiply
    636.92x = 955.82 × 226.06
  4. Step 4: Simplify right side
    636.92x = 216,072.67
  5. Step 5: Solve for x
    x = 216,072.67/636.92
  6. Step 6: Final answer
    x = 339.25

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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.