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Finding the Third Proportional to 29,285 and 64,402

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Solution

The third proportional to 29,285 and 64,402 is: 141,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,285 : 64,402 = 64,402 : x
  2. Step 2: Convert to fraction form
    29,285/64,402 = 64,402/x
  3. Step 3: Cross multiply
    29,285x = 64,402 × 64,402
  4. Step 4: Simplify right side
    29,285x = 4,147,617,604
  5. Step 5: Solve for x
    x = 4,147,617,604/29,285
  6. Step 6: Final answer
    x = 141,629.42

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.