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Finding the Third Proportional to 171,444 and 266,509

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Solution

The third proportional to 171,444 and 266,509 is: 414,287.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,444 : 266,509 = 266,509 : x
  2. Step 2: Convert to fraction form
    171,444/266,509 = 266,509/x
  3. Step 3: Cross multiply
    171,444x = 266,509 × 266,509
  4. Step 4: Simplify right side
    171,444x = 71,027,047,081
  5. Step 5: Solve for x
    x = 71,027,047,081/171,444
  6. Step 6: Final answer
    x = 414,287.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.