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Finding the Third Proportional to 73,145 and 157,390

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Solution

The third proportional to 73,145 and 157,390 is: 338,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145 : 157,390 = 157,390 : x
  2. Step 2: Convert to fraction form
    73,145/157,390 = 157,390/x
  3. Step 3: Cross multiply
    73,145x = 157,390 × 157,390
  4. Step 4: Simplify right side
    73,145x = 24,771,612,100
  5. Step 5: Solve for x
    x = 24,771,612,100/73,145
  6. Step 6: Final answer
    x = 338,664.46

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.