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Finding the Third Proportional to 72,800 and 153,376

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Solution

The third proportional to 72,800 and 153,376 is: 323,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,800 : 153,376 = 153,376 : x
  2. Step 2: Convert to fraction form
    72,800/153,376 = 153,376/x
  3. Step 3: Cross multiply
    72,800x = 153,376 × 153,376
  4. Step 4: Simplify right side
    72,800x = 23,524,197,376
  5. Step 5: Solve for x
    x = 23,524,197,376/72,800
  6. Step 6: Final answer
    x = 323,134.58

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.