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Finding the Third Proportional to 72,812 and 158,800

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Solution

The third proportional to 72,812 and 158,800 is: 346,336.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,812 : 158,800 = 158,800 : x
  2. Step 2: Convert to fraction form
    72,812/158,800 = 158,800/x
  3. Step 3: Cross multiply
    72,812x = 158,800 × 158,800
  4. Step 4: Simplify right side
    72,812x = 25,217,440,000
  5. Step 5: Solve for x
    x = 25,217,440,000/72,812
  6. Step 6: Final answer
    x = 346,336.32

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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.