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Finding the Fourth Proportional to 320,027.75, 480,035.69 and 95,540.40

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Solution

The fourth proportional to 320,027.75, 480,035.69 and 95,540.40 is: 143,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,027.75 : 480,035.69 = 95,540.40 : x
  2. Step 2: Convert to fraction form
    320,027.75/480,035.69 = 95,540.40/x
  3. Step 3: Cross multiply
    320,027.75x = 480,035.69 × 95,540.40
  4. Step 4: Simplify right side
    320,027.75x = 45,862,801,359.17
  5. Step 5: Solve for x
    x = 45,862,801,359.17/320,027.75
  6. Step 6: Final answer
    x = 143,308.83

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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.