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Finding the Third Proportional to 253,881 and 553,302

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Solution

The third proportional to 253,881 and 553,302 is: 1,205,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,881 : 553,302 = 553,302 : x
  2. Step 2: Convert to fraction form
    253,881/553,302 = 553,302/x
  3. Step 3: Cross multiply
    253,881x = 553,302 × 553,302
  4. Step 4: Simplify right side
    253,881x = 306,143,103,204
  5. Step 5: Solve for x
    x = 306,143,103,204/253,881
  6. Step 6: Final answer
    x = 1,205,852.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.