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Finding the Third Proportional to 147,487.50 and 319,999.50

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Solution

The third proportional to 147,487.50 and 319,999.50 is: 694,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,487.50 : 319,999.50 = 319,999.50 : x
  2. Step 2: Convert to fraction form
    147,487.50/319,999.50 = 319,999.50/x
  3. Step 3: Cross multiply
    147,487.50x = 319,999.50 × 319,999.50
  4. Step 4: Simplify right side
    147,487.50x = 102,399,680,000.25
  5. Step 5: Solve for x
    x = 102,399,680,000.25/147,487.50
  6. Step 6: Final answer
    x = 694,293.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.