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Finding the Third Proportional to 260,857.50 and 414,957

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Solution

The third proportional to 260,857.50 and 414,957 is: 660,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,857.50 : 414,957 = 414,957 : x
  2. Step 2: Convert to fraction form
    260,857.50/414,957 = 414,957/x
  3. Step 3: Cross multiply
    260,857.50x = 414,957 × 414,957
  4. Step 4: Simplify right side
    260,857.50x = 172,189,311,849
  5. Step 5: Solve for x
    x = 172,189,311,849/260,857.50
  6. Step 6: Final answer
    x = 660,089.56

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.