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Finding the Third Proportional to 149,890.50 and 319,200.75

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Solution

The third proportional to 149,890.50 and 319,200.75 is: 679,757.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,890.50 : 319,200.75 = 319,200.75 : x
  2. Step 2: Convert to fraction form
    149,890.50/319,200.75 = 319,200.75/x
  3. Step 3: Cross multiply
    149,890.50x = 319,200.75 × 319,200.75
  4. Step 4: Simplify right side
    149,890.50x = 101,889,118,800.56
  5. Step 5: Solve for x
    x = 101,889,118,800.56/149,890.50
  6. Step 6: Final answer
    x = 679,757.01

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.