Home / 281,767.14-388,836.36-154,442.46

Finding the Fourth Proportional to 281,767.14, 388,836.36 and 154,442.46

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Solution

The fourth proportional to 281,767.14, 388,836.36 and 154,442.46 is: 213,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,767.14 : 388,836.36 = 154,442.46 : x
  2. Step 2: Convert to fraction form
    281,767.14/388,836.36 = 154,442.46/x
  3. Step 3: Cross multiply
    281,767.14x = 388,836.36 × 154,442.46
  4. Step 4: Simplify right side
    281,767.14x = 60,052,843,975.85
  5. Step 5: Solve for x
    x = 60,052,843,975.85/281,767.14
  6. Step 6: Final answer
    x = 213,129.34

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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.