Home / 261,921.22-393,441.58-187,519.48

Finding the Fourth Proportional to 261,921.22, 393,441.58 and 187,519.48

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Solution

The fourth proportional to 261,921.22, 393,441.58 and 187,519.48 is: 281,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,921.22 : 393,441.58 = 187,519.48 : x
  2. Step 2: Convert to fraction form
    261,921.22/393,441.58 = 187,519.48/x
  3. Step 3: Cross multiply
    261,921.22x = 393,441.58 × 187,519.48
  4. Step 4: Simplify right side
    261,921.22x = 73,777,960,491.98
  5. Step 5: Solve for x
    x = 73,777,960,491.98/261,921.22
  6. Step 6: Final answer
    x = 281,679.97

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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.