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Finding the Fourth Proportional to 441,728.92, 662,697.22 and 142,198.31

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Solution

The fourth proportional to 441,728.92, 662,697.22 and 142,198.31 is: 213,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,728.92 : 662,697.22 = 142,198.31 : x
  2. Step 2: Convert to fraction form
    441,728.92/662,697.22 = 142,198.31/x
  3. Step 3: Cross multiply
    441,728.92x = 662,697.22 × 142,198.31
  4. Step 4: Simplify right side
    441,728.92x = 94,234,424,829.66
  5. Step 5: Solve for x
    x = 94,234,424,829.66/441,728.92
  6. Step 6: Final answer
    x = 213,330.89

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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.