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Finding the Third Proportional to 191,814.75 and 278,974.13

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Solution

The third proportional to 191,814.75 and 278,974.13 is: 405,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,814.75 : 278,974.13 = 278,974.13 : x
  2. Step 2: Convert to fraction form
    191,814.75/278,974.13 = 278,974.13/x
  3. Step 3: Cross multiply
    191,814.75x = 278,974.13 × 278,974.13
  4. Step 4: Simplify right side
    191,814.75x = 77,826,562,419.52
  5. Step 5: Solve for x
    x = 77,826,562,419.52/191,814.75
  6. Step 6: Final answer
    x = 405,738.15

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.