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Finding the Third Proportional to 214,247 and 409,054

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Solution

The third proportional to 214,247 and 409,054 is: 780,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,247 : 409,054 = 409,054 : x
  2. Step 2: Convert to fraction form
    214,247/409,054 = 409,054/x
  3. Step 3: Cross multiply
    214,247x = 409,054 × 409,054
  4. Step 4: Simplify right side
    214,247x = 167,325,174,916
  5. Step 5: Solve for x
    x = 167,325,174,916/214,247
  6. Step 6: Final answer
    x = 780,991.92

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.