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Finding the Fourth Proportional to 634.44, 951.84 and 201.72

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Solution

The fourth proportional to 634.44, 951.84 and 201.72 is: 302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.44 : 951.84 = 201.72 : x
  2. Step 2: Convert to fraction form
    634.44/951.84 = 201.72/x
  3. Step 3: Cross multiply
    634.44x = 951.84 × 201.72
  4. Step 4: Simplify right side
    634.44x = 192,005.16
  5. Step 5: Solve for x
    x = 192,005.16/634.44
  6. Step 6: Final answer
    x = 302.64

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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.