Home / 281,972.72-389,061.38-178,636.97

Finding the Fourth Proportional to 281,972.72, 389,061.38 and 178,636.97

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Solution

The fourth proportional to 281,972.72, 389,061.38 and 178,636.97 is: 246,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,972.72 : 389,061.38 = 178,636.97 : x
  2. Step 2: Convert to fraction form
    281,972.72/389,061.38 = 178,636.97/x
  3. Step 3: Cross multiply
    281,972.72x = 389,061.38 × 178,636.97
  4. Step 4: Simplify right side
    281,972.72x = 69,500,745,387.40
  5. Step 5: Solve for x
    x = 69,500,745,387.40/281,972.72
  6. Step 6: Final answer
    x = 246,480.39

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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.