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Finding the Third Proportional to 64,440 and 130,698

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Solution

The third proportional to 64,440 and 130,698 is: 265,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,440 : 130,698 = 130,698 : x
  2. Step 2: Convert to fraction form
    64,440/130,698 = 130,698/x
  3. Step 3: Cross multiply
    64,440x = 130,698 × 130,698
  4. Step 4: Simplify right side
    64,440x = 17,081,967,204
  5. Step 5: Solve for x
    x = 17,081,967,204/64,440
  6. Step 6: Final answer
    x = 265,083.29

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.