Home / 281,832.44-421,936.43-187,157.21

Finding the Fourth Proportional to 281,832.44, 421,936.43 and 187,157.21

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Solution

The fourth proportional to 281,832.44, 421,936.43 and 187,157.21 is: 280,196.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,832.44 : 421,936.43 = 187,157.21 : x
  2. Step 2: Convert to fraction form
    281,832.44/421,936.43 = 187,157.21/x
  3. Step 3: Cross multiply
    281,832.44x = 421,936.43 × 187,157.21
  4. Step 4: Simplify right side
    281,832.44x = 78,968,441,990.69
  5. Step 5: Solve for x
    x = 78,968,441,990.69/281,832.44
  6. Step 6: Final answer
    x = 280,196.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.