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Finding the Third Proportional to 133,915.50 and 190,381.50

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Solution

The third proportional to 133,915.50 and 190,381.50 is: 270,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,915.50 : 190,381.50 = 190,381.50 : x
  2. Step 2: Convert to fraction form
    133,915.50/190,381.50 = 190,381.50/x
  3. Step 3: Cross multiply
    133,915.50x = 190,381.50 × 190,381.50
  4. Step 4: Simplify right side
    133,915.50x = 36,245,115,542.25
  5. Step 5: Solve for x
    x = 36,245,115,542.25/133,915.50
  6. Step 6: Final answer
    x = 270,656.61

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.