Home / 281,180.25-388,033.61-153,857.97

Finding the Fourth Proportional to 281,180.25, 388,033.61 and 153,857.97

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Solution

The fourth proportional to 281,180.25, 388,033.61 and 153,857.97 is: 212,326.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,180.25 : 388,033.61 = 153,857.97 : x
  2. Step 2: Convert to fraction form
    281,180.25/388,033.61 = 153,857.97/x
  3. Step 3: Cross multiply
    281,180.25x = 388,033.61 × 153,857.97
  4. Step 4: Simplify right side
    281,180.25x = 59,702,062,757.08
  5. Step 5: Solve for x
    x = 59,702,062,757.08/281,180.25
  6. Step 6: Final answer
    x = 212,326.66

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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.