Home / 281,844.72-388,945.62-154,517.58

Finding the Fourth Proportional to 281,844.72, 388,945.62 and 154,517.58

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Solution

The fourth proportional to 281,844.72, 388,945.62 and 154,517.58 is: 213,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,844.72 : 388,945.62 = 154,517.58 : x
  2. Step 2: Convert to fraction form
    281,844.72/388,945.62 = 154,517.58/x
  3. Step 3: Cross multiply
    281,844.72x = 388,945.62 × 154,517.58
  4. Step 4: Simplify right side
    281,844.72x = 60,098,935,954.00
  5. Step 5: Solve for x
    x = 60,098,935,954.00/281,844.72
  6. Step 6: Final answer
    x = 213,234.21

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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.