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Finding the Third Proportional to 178,422.75 and 386,241.75

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Solution

The third proportional to 178,422.75 and 386,241.75 is: 836,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,422.75 : 386,241.75 = 386,241.75 : x
  2. Step 2: Convert to fraction form
    178,422.75/386,241.75 = 386,241.75/x
  3. Step 3: Cross multiply
    178,422.75x = 386,241.75 × 386,241.75
  4. Step 4: Simplify right side
    178,422.75x = 149,182,689,443.06
  5. Step 5: Solve for x
    x = 149,182,689,443.06/178,422.75
  6. Step 6: Final answer
    x = 836,119.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.