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Finding the Third Proportional to 64,988 and 135,082

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Solution

The third proportional to 64,988 and 135,082 is: 280,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,988 : 135,082 = 135,082 : x
  2. Step 2: Convert to fraction form
    64,988/135,082 = 135,082/x
  3. Step 3: Cross multiply
    64,988x = 135,082 × 135,082
  4. Step 4: Simplify right side
    64,988x = 18,247,146,724
  5. Step 5: Solve for x
    x = 18,247,146,724/64,988
  6. Step 6: Final answer
    x = 280,777.17

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.