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Finding the Third Proportional to 86,454 and 178,908

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Solution

The third proportional to 86,454 and 178,908 is: 370,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,454 : 178,908 = 178,908 : x
  2. Step 2: Convert to fraction form
    86,454/178,908 = 178,908/x
  3. Step 3: Cross multiply
    86,454x = 178,908 × 178,908
  4. Step 4: Simplify right side
    86,454x = 32,008,072,464
  5. Step 5: Solve for x
    x = 32,008,072,464/86,454
  6. Step 6: Final answer
    x = 370,232.41

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.