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Finding the Third Proportional to 193,484.25 and 278,689.50

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Solution

The third proportional to 193,484.25 and 278,689.50 is: 401,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,484.25 : 278,689.50 = 278,689.50 : x
  2. Step 2: Convert to fraction form
    193,484.25/278,689.50 = 278,689.50/x
  3. Step 3: Cross multiply
    193,484.25x = 278,689.50 × 278,689.50
  4. Step 4: Simplify right side
    193,484.25x = 77,667,837,410.25
  5. Step 5: Solve for x
    x = 77,667,837,410.25/193,484.25
  6. Step 6: Final answer
    x = 401,416.85

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.