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Finding the Third Proportional to 149,627.25 and 319,990.50

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Solution

The third proportional to 149,627.25 and 319,990.50 is: 684,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,627.25 : 319,990.50 = 319,990.50 : x
  2. Step 2: Convert to fraction form
    149,627.25/319,990.50 = 319,990.50/x
  3. Step 3: Cross multiply
    149,627.25x = 319,990.50 × 319,990.50
  4. Step 4: Simplify right side
    149,627.25x = 102,393,920,090.25
  5. Step 5: Solve for x
    x = 102,393,920,090.25/149,627.25
  6. Step 6: Final answer
    x = 684,326.69

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.