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Finding the Third Proportional to 151,355.25 and 318,390.75

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Solution

The third proportional to 151,355.25 and 318,390.75 is: 669,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,355.25 : 318,390.75 = 318,390.75 : x
  2. Step 2: Convert to fraction form
    151,355.25/318,390.75 = 318,390.75/x
  3. Step 3: Cross multiply
    151,355.25x = 318,390.75 × 318,390.75
  4. Step 4: Simplify right side
    151,355.25x = 101,372,669,685.56
  5. Step 5: Solve for x
    x = 101,372,669,685.56/151,355.25
  6. Step 6: Final answer
    x = 669,766.46

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.