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Finding the Third Proportional to 255,340 and 561,332

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Solution

The third proportional to 255,340 and 561,332 is: 1,234,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,340 : 561,332 = 561,332 : x
  2. Step 2: Convert to fraction form
    255,340/561,332 = 561,332/x
  3. Step 3: Cross multiply
    255,340x = 561,332 × 561,332
  4. Step 4: Simplify right side
    255,340x = 315,093,614,224
  5. Step 5: Solve for x
    x = 315,093,614,224/255,340
  6. Step 6: Final answer
    x = 1,234,015.88

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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.