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Finding the Third Proportional to 135,718 and 178,468

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Solution

The third proportional to 135,718 and 178,468 is: 234,683.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,718 : 178,468 = 178,468 : x
  2. Step 2: Convert to fraction form
    135,718/178,468 = 178,468/x
  3. Step 3: Cross multiply
    135,718x = 178,468 × 178,468
  4. Step 4: Simplify right side
    135,718x = 31,850,827,024
  5. Step 5: Solve for x
    x = 31,850,827,024/135,718
  6. Step 6: Final answer
    x = 234,683.88

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.