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Finding the Third Proportional to 251,684 and 553,102

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Solution

The third proportional to 251,684 and 553,102 is: 1,215,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,684 : 553,102 = 553,102 : x
  2. Step 2: Convert to fraction form
    251,684/553,102 = 553,102/x
  3. Step 3: Cross multiply
    251,684x = 553,102 × 553,102
  4. Step 4: Simplify right side
    251,684x = 305,921,822,404
  5. Step 5: Solve for x
    x = 305,921,822,404/251,684
  6. Step 6: Final answer
    x = 1,215,499.68

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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.