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Finding the Third Proportional to 239,732 and 516,828

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Solution

The third proportional to 239,732 and 516,828 is: 1,114,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,732 : 516,828 = 516,828 : x
  2. Step 2: Convert to fraction form
    239,732/516,828 = 516,828/x
  3. Step 3: Cross multiply
    239,732x = 516,828 × 516,828
  4. Step 4: Simplify right side
    239,732x = 267,111,181,584
  5. Step 5: Solve for x
    x = 267,111,181,584/239,732
  6. Step 6: Final answer
    x = 1,114,207.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.