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Finding the Third Proportional to 247,649 and 542,768

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Solution

The third proportional to 247,649 and 542,768 is: 1,189,575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,649 : 542,768 = 542,768 : x
  2. Step 2: Convert to fraction form
    247,649/542,768 = 542,768/x
  3. Step 3: Cross multiply
    247,649x = 542,768 × 542,768
  4. Step 4: Simplify right side
    247,649x = 294,597,101,824
  5. Step 5: Solve for x
    x = 294,597,101,824/247,649
  6. Step 6: Final answer
    x = 1,189,575.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.