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Finding the Third Proportional to 214,272 and 409,101

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Solution

The third proportional to 214,272 and 409,101 is: 781,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,272 : 409,101 = 409,101 : x
  2. Step 2: Convert to fraction form
    214,272/409,101 = 409,101/x
  3. Step 3: Cross multiply
    214,272x = 409,101 × 409,101
  4. Step 4: Simplify right side
    214,272x = 167,363,628,201
  5. Step 5: Solve for x
    x = 167,363,628,201/214,272
  6. Step 6: Final answer
    x = 781,080.25

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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.