Home / 320,858.72-481,126.06-187,778.96

Finding the Fourth Proportional to 320,858.72, 481,126.06 and 187,778.96

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Solution

The fourth proportional to 320,858.72, 481,126.06 and 187,778.96 is: 281,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,858.72 : 481,126.06 = 187,778.96 : x
  2. Step 2: Convert to fraction form
    320,858.72/481,126.06 = 187,778.96/x
  3. Step 3: Cross multiply
    320,858.72x = 481,126.06 × 187,778.96
  4. Step 4: Simplify right side
    320,858.72x = 90,345,351,175.70
  5. Step 5: Solve for x
    x = 90,345,351,175.70/320,858.72
  6. Step 6: Final answer
    x = 281,573.62

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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.