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Finding the Third Proportional to 172,310 and 264,786

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Solution

The third proportional to 172,310 and 264,786 is: 406,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,310 : 264,786 = 264,786 : x
  2. Step 2: Convert to fraction form
    172,310/264,786 = 264,786/x
  3. Step 3: Cross multiply
    172,310x = 264,786 × 264,786
  4. Step 4: Simplify right side
    172,310x = 70,111,625,796
  5. Step 5: Solve for x
    x = 70,111,625,796/172,310
  6. Step 6: Final answer
    x = 406,892.38

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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.