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Finding the Third Proportional to 115,518 and 253,716

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Solution

The third proportional to 115,518 and 253,716 is: 557,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,518 : 253,716 = 253,716 : x
  2. Step 2: Convert to fraction form
    115,518/253,716 = 253,716/x
  3. Step 3: Cross multiply
    115,518x = 253,716 × 253,716
  4. Step 4: Simplify right side
    115,518x = 64,371,808,656
  5. Step 5: Solve for x
    x = 64,371,808,656/115,518
  6. Step 6: Final answer
    x = 557,244.83

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.