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Finding the Third Proportional to 53,072 and 115,986

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Solution

The third proportional to 53,072 and 115,986 is: 253,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,072 : 115,986 = 115,986 : x
  2. Step 2: Convert to fraction form
    53,072/115,986 = 115,986/x
  3. Step 3: Cross multiply
    53,072x = 115,986 × 115,986
  4. Step 4: Simplify right side
    53,072x = 13,452,752,196
  5. Step 5: Solve for x
    x = 13,452,752,196/53,072
  6. Step 6: Final answer
    x = 253,481.16

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.