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Finding the Third Proportional to 72,434 and 115,251

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Solution

The third proportional to 72,434 and 115,251 is: 183,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,434 : 115,251 = 115,251 : x
  2. Step 2: Convert to fraction form
    72,434/115,251 = 115,251/x
  3. Step 3: Cross multiply
    72,434x = 115,251 × 115,251
  4. Step 4: Simplify right side
    72,434x = 13,282,793,001
  5. Step 5: Solve for x
    x = 13,282,793,001/72,434
  6. Step 6: Final answer
    x = 183,377.88

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.