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Finding the Third Proportional to 143,890 and 336,079

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Solution

The third proportional to 143,890 and 336,079 is: 784,968.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890 : 336,079 = 336,079 : x
  2. Step 2: Convert to fraction form
    143,890/336,079 = 336,079/x
  3. Step 3: Cross multiply
    143,890x = 336,079 × 336,079
  4. Step 4: Simplify right side
    143,890x = 112,949,094,241
  5. Step 5: Solve for x
    x = 112,949,094,241/143,890
  6. Step 6: Final answer
    x = 784,968.34

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.