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Finding the Third Proportional to 200.03 and 309.06

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Solution

The third proportional to 200.03 and 309.06 is: 477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.03 : 309.06 = 309.06 : x
  2. Step 2: Convert to fraction form
    200.03/309.06 = 309.06/x
  3. Step 3: Cross multiply
    200.03x = 309.06 × 309.06
  4. Step 4: Simplify right side
    200.03x = 95,519.63
  5. Step 5: Solve for x
    x = 95,519.63/200.03
  6. Step 6: Final answer
    x = 477.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.