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Finding the Third Proportional to 88,272 and 136,768

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Solution

The third proportional to 88,272 and 136,768 is: 211,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,272 : 136,768 = 136,768 : x
  2. Step 2: Convert to fraction form
    88,272/136,768 = 136,768/x
  3. Step 3: Cross multiply
    88,272x = 136,768 × 136,768
  4. Step 4: Simplify right side
    88,272x = 18,705,485,824
  5. Step 5: Solve for x
    x = 18,705,485,824/88,272
  6. Step 6: Final answer
    x = 211,907.35

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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.