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Finding the Third Proportional to 207,908 and 330,520

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Solution

The third proportional to 207,908 and 330,520 is: 525,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,908 : 330,520 = 330,520 : x
  2. Step 2: Convert to fraction form
    207,908/330,520 = 330,520/x
  3. Step 3: Cross multiply
    207,908x = 330,520 × 330,520
  4. Step 4: Simplify right side
    207,908x = 109,243,470,400
  5. Step 5: Solve for x
    x = 109,243,470,400/207,908
  6. Step 6: Final answer
    x = 525,441.40

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.