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Finding the Third Proportional to 64,929 and 135,054

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Solution

The third proportional to 64,929 and 135,054 is: 280,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,929 : 135,054 = 135,054 : x
  2. Step 2: Convert to fraction form
    64,929/135,054 = 135,054/x
  3. Step 3: Cross multiply
    64,929x = 135,054 × 135,054
  4. Step 4: Simplify right side
    64,929x = 18,239,582,916
  5. Step 5: Solve for x
    x = 18,239,582,916/64,929
  6. Step 6: Final answer
    x = 280,915.81

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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.