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Finding the Third Proportional to 150.13 and 318.13

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Solution

The third proportional to 150.13 and 318.13 is: 674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.13 : 318.13 = 318.13 : x
  2. Step 2: Convert to fraction form
    150.13/318.13 = 318.13/x
  3. Step 3: Cross multiply
    150.13x = 318.13 × 318.13
  4. Step 4: Simplify right side
    150.13x = 101,203.52
  5. Step 5: Solve for x
    x = 101,203.52/150.13
  6. Step 6: Final answer
    x = 674.13

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.