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Finding the Third Proportional to 142,276 and 214,353

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Solution

The third proportional to 142,276 and 214,353 is: 322,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,276 : 214,353 = 214,353 : x
  2. Step 2: Convert to fraction form
    142,276/214,353 = 214,353/x
  3. Step 3: Cross multiply
    142,276x = 214,353 × 214,353
  4. Step 4: Simplify right side
    142,276x = 45,947,208,609
  5. Step 5: Solve for x
    x = 45,947,208,609/142,276
  6. Step 6: Final answer
    x = 322,944.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.