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Finding the Fourth Proportional to 325,171.60, 487,808 and 192,147.72

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Solution

The fourth proportional to 325,171.60, 487,808 and 192,147.72 is: 288,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,171.60 : 487,808 = 192,147.72 : x
  2. Step 2: Convert to fraction form
    325,171.60/487,808 = 192,147.72/x
  3. Step 3: Cross multiply
    325,171.60x = 487,808 × 192,147.72
  4. Step 4: Simplify right side
    325,171.60x = 93,731,194,997.76
  5. Step 5: Solve for x
    x = 93,731,194,997.76/325,171.60
  6. Step 6: Final answer
    x = 288,251.48

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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.