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Finding the Third Proportional to 307.63 and 650.13

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Solution

The third proportional to 307.63 and 650.13 is: 1,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.63 : 650.13 = 650.13 : x
  2. Step 2: Convert to fraction form
    307.63/650.13 = 650.13/x
  3. Step 3: Cross multiply
    307.63x = 650.13 × 650.13
  4. Step 4: Simplify right side
    307.63x = 422,662.52
  5. Step 5: Solve for x
    x = 422,662.52/307.63
  6. Step 6: Final answer
    x = 1,373.95

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.