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Finding the Third Proportional to 171,678 and 355,236

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Solution

The third proportional to 171,678 and 355,236 is: 735,054.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,678 : 355,236 = 355,236 : x
  2. Step 2: Convert to fraction form
    171,678/355,236 = 355,236/x
  3. Step 3: Cross multiply
    171,678x = 355,236 × 355,236
  4. Step 4: Simplify right side
    171,678x = 126,192,615,696
  5. Step 5: Solve for x
    x = 126,192,615,696/171,678
  6. Step 6: Final answer
    x = 735,054.09

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.