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Finding the Fourth Proportional to 349,190.40, 481,883.36 and 198,287.36

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Solution

The fourth proportional to 349,190.40, 481,883.36 and 198,287.36 is: 273,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,190.40 : 481,883.36 = 198,287.36 : x
  2. Step 2: Convert to fraction form
    349,190.40/481,883.36 = 198,287.36/x
  3. Step 3: Cross multiply
    349,190.40x = 481,883.36 × 198,287.36
  4. Step 4: Simplify right side
    349,190.40x = 95,551,379,282.33
  5. Step 5: Solve for x
    x = 95,551,379,282.33/349,190.40
  6. Step 6: Final answer
    x = 273,636.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.