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Finding the Third Proportional to 172,730 and 374,967

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Solution

The third proportional to 172,730 and 374,967 is: 813,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,730 : 374,967 = 374,967 : x
  2. Step 2: Convert to fraction form
    172,730/374,967 = 374,967/x
  3. Step 3: Cross multiply
    172,730x = 374,967 × 374,967
  4. Step 4: Simplify right side
    172,730x = 140,600,251,089
  5. Step 5: Solve for x
    x = 140,600,251,089/172,730
  6. Step 6: Final answer
    x = 813,988.60

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.