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Finding the Third Proportional to 185,445 and 397,132

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Solution

The third proportional to 185,445 and 397,132 is: 850,461.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,445 : 397,132 = 397,132 : x
  2. Step 2: Convert to fraction form
    185,445/397,132 = 397,132/x
  3. Step 3: Cross multiply
    185,445x = 397,132 × 397,132
  4. Step 4: Simplify right side
    185,445x = 157,713,825,424
  5. Step 5: Solve for x
    x = 157,713,825,424/185,445
  6. Step 6: Final answer
    x = 850,461.46

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.