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Finding the Third Proportional to 80,400 and 176,835

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Solution

The third proportional to 80,400 and 176,835 is: 388,938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,400 : 176,835 = 176,835 : x
  2. Step 2: Convert to fraction form
    80,400/176,835 = 176,835/x
  3. Step 3: Cross multiply
    80,400x = 176,835 × 176,835
  4. Step 4: Simplify right side
    80,400x = 31,270,617,225
  5. Step 5: Solve for x
    x = 31,270,617,225/80,400
  6. Step 6: Final answer
    x = 388,938.03

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.