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Finding the Fourth Proportional to 198,004.40, 296,998.44 and 71,647.64

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Solution

The fourth proportional to 198,004.40, 296,998.44 and 71,647.64 is: 107,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,004.40 : 296,998.44 = 71,647.64 : x
  2. Step 2: Convert to fraction form
    198,004.40/296,998.44 = 71,647.64/x
  3. Step 3: Cross multiply
    198,004.40x = 296,998.44 × 71,647.64
  4. Step 4: Simplify right side
    198,004.40x = 21,279,237,309.68
  5. Step 5: Solve for x
    x = 21,279,237,309.68/198,004.40
  6. Step 6: Final answer
    x = 107,468.51

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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.