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Finding the Fourth Proportional to 333,697.82, 500,542.50 and 80,980.38

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Solution

The fourth proportional to 333,697.82, 500,542.50 and 80,980.38 is: 121,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,697.82 : 500,542.50 = 80,980.38 : x
  2. Step 2: Convert to fraction form
    333,697.82/500,542.50 = 80,980.38/x
  3. Step 3: Cross multiply
    333,697.82x = 500,542.50 × 80,980.38
  4. Step 4: Simplify right side
    333,697.82x = 40,534,121,856.15
  5. Step 5: Solve for x
    x = 40,534,121,856.15/333,697.82
  6. Step 6: Final answer
    x = 121,469.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.