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Finding the Third Proportional to 260,889.75 and 415,005.75

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Solution

The third proportional to 260,889.75 and 415,005.75 is: 660,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,889.75 : 415,005.75 = 415,005.75 : x
  2. Step 2: Convert to fraction form
    260,889.75/415,005.75 = 415,005.75/x
  3. Step 3: Cross multiply
    260,889.75x = 415,005.75 × 415,005.75
  4. Step 4: Simplify right side
    260,889.75x = 172,229,772,533.06
  5. Step 5: Solve for x
    x = 172,229,772,533.06/260,889.75
  6. Step 6: Final answer
    x = 660,163.05

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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.