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Finding the Third Proportional to 173,878 and 369,079

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Solution

The third proportional to 173,878 and 369,079 is: 783,418.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,878 : 369,079 = 369,079 : x
  2. Step 2: Convert to fraction form
    173,878/369,079 = 369,079/x
  3. Step 3: Cross multiply
    173,878x = 369,079 × 369,079
  4. Step 4: Simplify right side
    173,878x = 136,219,308,241
  5. Step 5: Solve for x
    x = 136,219,308,241/173,878
  6. Step 6: Final answer
    x = 783,418.88

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.