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Finding the Third Proportional to 133,213 and 285,320

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Solution

The third proportional to 133,213 and 285,320 is: 611,107.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,213 : 285,320 = 285,320 : x
  2. Step 2: Convert to fraction form
    133,213/285,320 = 285,320/x
  3. Step 3: Cross multiply
    133,213x = 285,320 × 285,320
  4. Step 4: Simplify right side
    133,213x = 81,407,502,400
  5. Step 5: Solve for x
    x = 81,407,502,400/133,213
  6. Step 6: Final answer
    x = 611,107.79

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.