Home / 281,836.12-388,912.26-160,960.72

Finding the Fourth Proportional to 281,836.12, 388,912.26 and 160,960.72

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Solution

The fourth proportional to 281,836.12, 388,912.26 and 160,960.72 is: 222,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,836.12 : 388,912.26 = 160,960.72 : x
  2. Step 2: Convert to fraction form
    281,836.12/388,912.26 = 160,960.72/x
  3. Step 3: Cross multiply
    281,836.12x = 388,912.26 × 160,960.72
  4. Step 4: Simplify right side
    281,836.12x = 62,599,597,386.43
  5. Step 5: Solve for x
    x = 62,599,597,386.43/281,836.12
  6. Step 6: Final answer
    x = 222,113.47

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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.