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Finding the Third Proportional to 170,727.75 and 256,638.38

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Solution

The third proportional to 170,727.75 and 256,638.38 is: 385,779.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,727.75 : 256,638.38 = 256,638.38 : x
  2. Step 2: Convert to fraction form
    170,727.75/256,638.38 = 256,638.38/x
  3. Step 3: Cross multiply
    170,727.75x = 256,638.38 × 256,638.38
  4. Step 4: Simplify right side
    170,727.75x = 65,863,255,522.64
  5. Step 5: Solve for x
    x = 65,863,255,522.64/170,727.75
  6. Step 6: Final answer
    x = 385,779.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.