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Finding the Third Proportional to 269,808.75 and 389,796.75

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Solution

The third proportional to 269,808.75 and 389,796.75 is: 563,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,808.75 : 389,796.75 = 389,796.75 : x
  2. Step 2: Convert to fraction form
    269,808.75/389,796.75 = 389,796.75/x
  3. Step 3: Cross multiply
    269,808.75x = 389,796.75 × 389,796.75
  4. Step 4: Simplify right side
    269,808.75x = 151,941,506,310.56
  5. Step 5: Solve for x
    x = 151,941,506,310.56/269,808.75
  6. Step 6: Final answer
    x = 563,145.21

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.