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Finding the Fourth Proportional to 625.28, 937.72 and 300.44

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Solution

The fourth proportional to 625.28, 937.72 and 300.44 is: 450.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.28 : 937.72 = 300.44 : x
  2. Step 2: Convert to fraction form
    625.28/937.72 = 300.44/x
  3. Step 3: Cross multiply
    625.28x = 937.72 × 300.44
  4. Step 4: Simplify right side
    625.28x = 281,728.60
  5. Step 5: Solve for x
    x = 281,728.60/625.28
  6. Step 6: Final answer
    x = 450.56

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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.