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Finding the Third Proportional to 117,414 and 178,368

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Solution

The third proportional to 117,414 and 178,368 is: 270,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,414 : 178,368 = 178,368 : x
  2. Step 2: Convert to fraction form
    117,414/178,368 = 178,368/x
  3. Step 3: Cross multiply
    117,414x = 178,368 × 178,368
  4. Step 4: Simplify right side
    117,414x = 31,815,143,424
  5. Step 5: Solve for x
    x = 31,815,143,424/117,414
  6. Step 6: Final answer
    x = 270,965.50

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.