Home / 281,118.28-387,942.83-153,793.88

Finding the Fourth Proportional to 281,118.28, 387,942.83 and 153,793.88

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Solution

The fourth proportional to 281,118.28, 387,942.83 and 153,793.88 is: 212,235.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,118.28 : 387,942.83 = 153,793.88 : x
  2. Step 2: Convert to fraction form
    281,118.28/387,942.83 = 153,793.88/x
  3. Step 3: Cross multiply
    281,118.28x = 387,942.83 × 153,793.88
  4. Step 4: Simplify right side
    281,118.28x = 59,663,233,043.88
  5. Step 5: Solve for x
    x = 59,663,233,043.88/281,118.28
  6. Step 6: Final answer
    x = 212,235.34

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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.