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Finding the Fourth Proportional to 253,195.41, 379,736.62 and 75,679.36

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Solution

The fourth proportional to 253,195.41, 379,736.62 and 75,679.36 is: 113,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,195.41 : 379,736.62 = 75,679.36 : x
  2. Step 2: Convert to fraction form
    253,195.41/379,736.62 = 75,679.36/x
  3. Step 3: Cross multiply
    253,195.41x = 379,736.62 × 75,679.36
  4. Step 4: Simplify right side
    253,195.41x = 28,738,223,231.62
  5. Step 5: Solve for x
    x = 28,738,223,231.62/253,195.41
  6. Step 6: Final answer
    x = 113,502.15

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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.