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Finding the Third Proportional to 133,419 and 291,462

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Solution

The third proportional to 133,419 and 291,462 is: 636,716.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,419 : 291,462 = 291,462 : x
  2. Step 2: Convert to fraction form
    133,419/291,462 = 291,462/x
  3. Step 3: Cross multiply
    133,419x = 291,462 × 291,462
  4. Step 4: Simplify right side
    133,419x = 84,950,097,444
  5. Step 5: Solve for x
    x = 84,950,097,444/133,419
  6. Step 6: Final answer
    x = 636,716.64

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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.