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Finding the Third Proportional to 115,880 and 155,208

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Solution

The third proportional to 115,880 and 155,208 is: 207,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,880 : 155,208 = 155,208 : x
  2. Step 2: Convert to fraction form
    115,880/155,208 = 155,208/x
  3. Step 3: Cross multiply
    115,880x = 155,208 × 155,208
  4. Step 4: Simplify right side
    115,880x = 24,089,523,264
  5. Step 5: Solve for x
    x = 24,089,523,264/115,880
  6. Step 6: Final answer
    x = 207,883.36

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.