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Finding the Third Proportional to 117,411 and 178,361

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Solution

The third proportional to 117,411 and 178,361 is: 270,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,411 : 178,361 = 178,361 : x
  2. Step 2: Convert to fraction form
    117,411/178,361 = 178,361/x
  3. Step 3: Cross multiply
    117,411x = 178,361 × 178,361
  4. Step 4: Simplify right side
    117,411x = 31,812,646,321
  5. Step 5: Solve for x
    x = 31,812,646,321/117,411
  6. Step 6: Final answer
    x = 270,951.16

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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.