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Finding the Third Proportional to 129,222 and 273,348

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Solution

The third proportional to 129,222 and 273,348 is: 578,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,222 : 273,348 = 273,348 : x
  2. Step 2: Convert to fraction form
    129,222/273,348 = 273,348/x
  3. Step 3: Cross multiply
    129,222x = 273,348 × 273,348
  4. Step 4: Simplify right side
    129,222x = 74,719,129,104
  5. Step 5: Solve for x
    x = 74,719,129,104/129,222
  6. Step 6: Final answer
    x = 578,222.97

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.