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Finding the Third Proportional to 68,654.44 and 144,690

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Solution

The third proportional to 68,654.44 and 144,690 is: 304,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,654.44 : 144,690 = 144,690 : x
  2. Step 2: Convert to fraction form
    68,654.44/144,690 = 144,690/x
  3. Step 3: Cross multiply
    68,654.44x = 144,690 × 144,690
  4. Step 4: Simplify right side
    68,654.44x = 20,935,196,100
  5. Step 5: Solve for x
    x = 20,935,196,100/68,654.44
  6. Step 6: Final answer
    x = 304,935.80

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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.