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Finding the Third Proportional to 168,087 and 358,638

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Solution

The third proportional to 168,087 and 358,638 is: 765,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,087 : 358,638 = 358,638 : x
  2. Step 2: Convert to fraction form
    168,087/358,638 = 358,638/x
  3. Step 3: Cross multiply
    168,087x = 358,638 × 358,638
  4. Step 4: Simplify right side
    168,087x = 128,621,215,044
  5. Step 5: Solve for x
    x = 128,621,215,044/168,087
  6. Step 6: Final answer
    x = 765,206.20

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.