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Finding the Third Proportional to 218,419 and 347,301

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Solution

The third proportional to 218,419 and 347,301 is: 552,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,419 : 347,301 = 347,301 : x
  2. Step 2: Convert to fraction form
    218,419/347,301 = 347,301/x
  3. Step 3: Cross multiply
    218,419x = 347,301 × 347,301
  4. Step 4: Simplify right side
    218,419x = 120,617,984,601
  5. Step 5: Solve for x
    x = 120,617,984,601/218,419
  6. Step 6: Final answer
    x = 552,232.11

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.