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Finding the Third Proportional to 305,955 and 656,201.25

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Solution

The third proportional to 305,955 and 656,201.25 is: 1,407,396.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,955 : 656,201.25 = 656,201.25 : x
  2. Step 2: Convert to fraction form
    305,955/656,201.25 = 656,201.25/x
  3. Step 3: Cross multiply
    305,955x = 656,201.25 × 656,201.25
  4. Step 4: Simplify right side
    305,955x = 430,600,080,501.56
  5. Step 5: Solve for x
    x = 430,600,080,501.56/305,955
  6. Step 6: Final answer
    x = 1,407,396.78

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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.