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Finding the Third Proportional to 138,324 and 302,694

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Solution

The third proportional to 138,324 and 302,694 is: 662,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,324 : 302,694 = 302,694 : x
  2. Step 2: Convert to fraction form
    138,324/302,694 = 302,694/x
  3. Step 3: Cross multiply
    138,324x = 302,694 × 302,694
  4. Step 4: Simplify right side
    138,324x = 91,623,657,636
  5. Step 5: Solve for x
    x = 91,623,657,636/138,324
  6. Step 6: Final answer
    x = 662,384.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.