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Finding the Third Proportional to 79,516.05 and 172,837.55

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Solution

The third proportional to 79,516.05 and 172,837.55 is: 375,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,516.05 : 172,837.55 = 172,837.55 : x
  2. Step 2: Convert to fraction form
    79,516.05/172,837.55 = 172,837.55/x
  3. Step 3: Cross multiply
    79,516.05x = 172,837.55 × 172,837.55
  4. Step 4: Simplify right side
    79,516.05x = 29,872,817,609.77
  5. Step 5: Solve for x
    x = 29,872,817,609.77/79,516.05
  6. Step 6: Final answer
    x = 375,682.84

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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.