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Finding the Third Proportional to 171,648 and 358,990

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Solution

The third proportional to 171,648 and 358,990 is: 750,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,648 : 358,990 = 358,990 : x
  2. Step 2: Convert to fraction form
    171,648/358,990 = 358,990/x
  3. Step 3: Cross multiply
    171,648x = 358,990 × 358,990
  4. Step 4: Simplify right side
    171,648x = 128,873,820,100
  5. Step 5: Solve for x
    x = 128,873,820,100/171,648
  6. Step 6: Final answer
    x = 750,802.92

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.