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Finding the Third Proportional to 70,231.50 and 153,999

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Solution

The third proportional to 70,231.50 and 153,999 is: 337,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,231.50 : 153,999 = 153,999 : x
  2. Step 2: Convert to fraction form
    70,231.50/153,999 = 153,999/x
  3. Step 3: Cross multiply
    70,231.50x = 153,999 × 153,999
  4. Step 4: Simplify right side
    70,231.50x = 23,715,692,001
  5. Step 5: Solve for x
    x = 23,715,692,001/70,231.50
  6. Step 6: Final answer
    x = 337,678.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.