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Finding the Third Proportional to 172,642 and 376,666

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Solution

The third proportional to 172,642 and 376,666 is: 821,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,642 : 376,666 = 376,666 : x
  2. Step 2: Convert to fraction form
    172,642/376,666 = 376,666/x
  3. Step 3: Cross multiply
    172,642x = 376,666 × 376,666
  4. Step 4: Simplify right side
    172,642x = 141,877,275,556
  5. Step 5: Solve for x
    x = 141,877,275,556/172,642
  6. Step 6: Final answer
    x = 821,800.46

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.