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Finding the Third Proportional to 84,436 and 130,305

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Solution

The third proportional to 84,436 and 130,305 is: 201,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,436 : 130,305 = 130,305 : x
  2. Step 2: Convert to fraction form
    84,436/130,305 = 130,305/x
  3. Step 3: Cross multiply
    84,436x = 130,305 × 130,305
  4. Step 4: Simplify right side
    84,436x = 16,979,393,025
  5. Step 5: Solve for x
    x = 16,979,393,025/84,436
  6. Step 6: Final answer
    x = 201,091.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.