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Finding the Third Proportional to 301,842 and 408,474

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Solution

The third proportional to 301,842 and 408,474 is: 552,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,842 : 408,474 = 408,474 : x
  2. Step 2: Convert to fraction form
    301,842/408,474 = 408,474/x
  3. Step 3: Cross multiply
    301,842x = 408,474 × 408,474
  4. Step 4: Simplify right side
    301,842x = 166,851,008,676
  5. Step 5: Solve for x
    x = 166,851,008,676/301,842
  6. Step 6: Final answer
    x = 552,775.98

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.