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Finding the Third Proportional to 42,218 and 92,278

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Solution

The third proportional to 42,218 and 92,278 is: 201,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,218 : 92,278 = 92,278 : x
  2. Step 2: Convert to fraction form
    42,218/92,278 = 92,278/x
  3. Step 3: Cross multiply
    42,218x = 92,278 × 92,278
  4. Step 4: Simplify right side
    42,218x = 8,515,229,284
  5. Step 5: Solve for x
    x = 8,515,229,284/42,218
  6. Step 6: Final answer
    x = 201,696.65

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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.