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Finding the Third Proportional to 251,358 and 520,212

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Solution

The third proportional to 251,358 and 520,212 is: 1,076,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,358 : 520,212 = 520,212 : x
  2. Step 2: Convert to fraction form
    251,358/520,212 = 520,212/x
  3. Step 3: Cross multiply
    251,358x = 520,212 × 520,212
  4. Step 4: Simplify right side
    251,358x = 270,620,524,944
  5. Step 5: Solve for x
    x = 270,620,524,944/251,358
  6. Step 6: Final answer
    x = 1,076,633.82

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.