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Finding the Third Proportional to 285,102 and 612,321

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Solution

The third proportional to 285,102 and 612,321 is: 1,315,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,102 : 612,321 = 612,321 : x
  2. Step 2: Convert to fraction form
    285,102/612,321 = 612,321/x
  3. Step 3: Cross multiply
    285,102x = 612,321 × 612,321
  4. Step 4: Simplify right side
    285,102x = 374,937,007,041
  5. Step 5: Solve for x
    x = 374,937,007,041/285,102
  6. Step 6: Final answer
    x = 1,315,097.78

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.