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Finding the Third Proportional to 135,144 and 208,032

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Solution

The third proportional to 135,144 and 208,032 is: 320,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,144 : 208,032 = 208,032 : x
  2. Step 2: Convert to fraction form
    135,144/208,032 = 208,032/x
  3. Step 3: Cross multiply
    135,144x = 208,032 × 208,032
  4. Step 4: Simplify right side
    135,144x = 43,277,313,024
  5. Step 5: Solve for x
    x = 43,277,313,024/135,144
  6. Step 6: Final answer
    x = 320,231.11

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.