Home / 281,711.04-388,759.68-154,382.28

Finding the Fourth Proportional to 281,711.04, 388,759.68 and 154,382.28

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Solution

The fourth proportional to 281,711.04, 388,759.68 and 154,382.28 is: 213,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,711.04 : 388,759.68 = 154,382.28 : x
  2. Step 2: Convert to fraction form
    281,711.04/388,759.68 = 154,382.28/x
  3. Step 3: Cross multiply
    281,711.04x = 388,759.68 × 154,382.28
  4. Step 4: Simplify right side
    281,711.04x = 60,017,605,770.47
  5. Step 5: Solve for x
    x = 60,017,605,770.47/281,711.04
  6. Step 6: Final answer
    x = 213,046.69

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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.