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Finding the Third Proportional to 135,079 and 293,942

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Solution

The third proportional to 135,079 and 293,942 is: 639,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,079 : 293,942 = 293,942 : x
  2. Step 2: Convert to fraction form
    135,079/293,942 = 293,942/x
  3. Step 3: Cross multiply
    135,079x = 293,942 × 293,942
  4. Step 4: Simplify right side
    135,079x = 86,401,899,364
  5. Step 5: Solve for x
    x = 86,401,899,364/135,079
  6. Step 6: Final answer
    x = 639,639.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.