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Finding the Fourth Proportional to 636.82, 955.54 and 226.26

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Solution

The fourth proportional to 636.82, 955.54 and 226.26 is: 339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.82 : 955.54 = 226.26 : x
  2. Step 2: Convert to fraction form
    636.82/955.54 = 226.26/x
  3. Step 3: Cross multiply
    636.82x = 955.54 × 226.26
  4. Step 4: Simplify right side
    636.82x = 216,200.48
  5. Step 5: Solve for x
    x = 216,200.48/636.82
  6. Step 6: Final answer
    x = 339.50

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Similar ratio
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1.5x scale

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.