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Finding the Third Proportional to 208.38 and 300.13

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Solution

The third proportional to 208.38 and 300.13 is: 432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208.38 : 300.13 = 300.13 : x
  2. Step 2: Convert to fraction form
    208.38/300.13 = 300.13/x
  3. Step 3: Cross multiply
    208.38x = 300.13 × 300.13
  4. Step 4: Simplify right side
    208.38x = 90,075.02
  5. Step 5: Solve for x
    x = 90,075.02/208.38
  6. Step 6: Final answer
    x = 432.27

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.