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Finding the Third Proportional to 172,760 and 266,518

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Solution

The third proportional to 172,760 and 266,518 is: 411,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,760 : 266,518 = 266,518 : x
  2. Step 2: Convert to fraction form
    172,760/266,518 = 266,518/x
  3. Step 3: Cross multiply
    172,760x = 266,518 × 266,518
  4. Step 4: Simplify right side
    172,760x = 71,031,844,324
  5. Step 5: Solve for x
    x = 71,031,844,324/172,760
  6. Step 6: Final answer
    x = 411,159.09

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.