Home / 281,848.80-388,942.92-154,520.04

Finding the Fourth Proportional to 281,848.80, 388,942.92 and 154,520.04

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Solution

The fourth proportional to 281,848.80, 388,942.92 and 154,520.04 is: 213,233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,848.80 : 388,942.92 = 154,520.04 : x
  2. Step 2: Convert to fraction form
    281,848.80/388,942.92 = 154,520.04/x
  3. Step 3: Cross multiply
    281,848.80x = 388,942.92 × 154,520.04
  4. Step 4: Simplify right side
    281,848.80x = 60,099,475,556.12
  5. Step 5: Solve for x
    x = 60,099,475,556.12/281,848.80
  6. Step 6: Final answer
    x = 213,233.04

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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.