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Finding the Third Proportional to 80,816 and 176,320

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Solution

The third proportional to 80,816 and 176,320 is: 384,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,816 : 176,320 = 176,320 : x
  2. Step 2: Convert to fraction form
    80,816/176,320 = 176,320/x
  3. Step 3: Cross multiply
    80,816x = 176,320 × 176,320
  4. Step 4: Simplify right side
    80,816x = 31,088,742,400
  5. Step 5: Solve for x
    x = 31,088,742,400/80,816
  6. Step 6: Final answer
    x = 384,685.49

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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.