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Finding the Fourth Proportional to 636.06, 954.04 and 203.20

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Solution

The fourth proportional to 636.06, 954.04 and 203.20 is: 304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.06 : 954.04 = 203.20 : x
  2. Step 2: Convert to fraction form
    636.06/954.04 = 203.20/x
  3. Step 3: Cross multiply
    636.06x = 954.04 × 203.20
  4. Step 4: Simplify right side
    636.06x = 193,860.93
  5. Step 5: Solve for x
    x = 193,860.93/636.06
  6. Step 6: Final answer
    x = 304.78

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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.