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Finding the Third Proportional to 141.91 and 339.11

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Solution

The third proportional to 141.91 and 339.11 is: 810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.91 : 339.11 = 339.11 : x
  2. Step 2: Convert to fraction form
    141.91/339.11 = 339.11/x
  3. Step 3: Cross multiply
    141.91x = 339.11 × 339.11
  4. Step 4: Simplify right side
    141.91x = 114,994.51
  5. Step 5: Solve for x
    x = 114,994.51/141.91
  6. Step 6: Final answer
    x = 810.34

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.