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Finding the Third Proportional to 375.05 and 630.49

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Solution

The third proportional to 375.05 and 630.49 is: 1,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.05 : 630.49 = 630.49 : x
  2. Step 2: Convert to fraction form
    375.05/630.49 = 630.49/x
  3. Step 3: Cross multiply
    375.05x = 630.49 × 630.49
  4. Step 4: Simplify right side
    375.05x = 397,520.40
  5. Step 5: Solve for x
    x = 397,520.40/375.05
  6. Step 6: Final answer
    x = 1,059.92

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.