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Finding the Third Proportional to 115,760 and 253,678

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Solution

The third proportional to 115,760 and 253,678 is: 555,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,760 : 253,678 = 253,678 : x
  2. Step 2: Convert to fraction form
    115,760/253,678 = 253,678/x
  3. Step 3: Cross multiply
    115,760x = 253,678 × 253,678
  4. Step 4: Simplify right side
    115,760x = 64,352,527,684
  5. Step 5: Solve for x
    x = 64,352,527,684/115,760
  6. Step 6: Final answer
    x = 555,913.34

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.