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Finding the Fourth Proportional to 345,936.78, 477,393.39 and 195,033.42

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Solution

The fourth proportional to 345,936.78, 477,393.39 and 195,033.42 is: 269,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,936.78 : 477,393.39 = 195,033.42 : x
  2. Step 2: Convert to fraction form
    345,936.78/477,393.39 = 195,033.42/x
  3. Step 3: Cross multiply
    345,936.78x = 477,393.39 × 195,033.42
  4. Step 4: Simplify right side
    345,936.78x = 93,107,665,537.09
  5. Step 5: Solve for x
    x = 93,107,665,537.09/345,936.78
  6. Step 6: Final answer
    x = 269,146.48

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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.