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Finding the Third Proportional to 251,710 and 490,661

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Solution

The third proportional to 251,710 and 490,661 is: 956,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,710 : 490,661 = 490,661 : x
  2. Step 2: Convert to fraction form
    251,710/490,661 = 490,661/x
  3. Step 3: Cross multiply
    251,710x = 490,661 × 490,661
  4. Step 4: Simplify right side
    251,710x = 240,748,216,921
  5. Step 5: Solve for x
    x = 240,748,216,921/251,710
  6. Step 6: Final answer
    x = 956,450.74

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.