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Finding the Third Proportional to 84,345.38 and 178,173.75

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Solution

The third proportional to 84,345.38 and 178,173.75 is: 376,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,345.38 : 178,173.75 = 178,173.75 : x
  2. Step 2: Convert to fraction form
    84,345.38/178,173.75 = 178,173.75/x
  3. Step 3: Cross multiply
    84,345.38x = 178,173.75 × 178,173.75
  4. Step 4: Simplify right side
    84,345.38x = 31,745,885,189.06
  5. Step 5: Solve for x
    x = 31,745,885,189.06/84,345.38
  6. Step 6: Final answer
    x = 376,379.68

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.