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Finding the Fourth Proportional to 1,255.50, 1,882.22 and 475.06

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Solution

The fourth proportional to 1,255.50, 1,882.22 and 475.06 is: 712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.50 : 1,882.22 = 475.06 : x
  2. Step 2: Convert to fraction form
    1,255.50/1,882.22 = 475.06/x
  3. Step 3: Cross multiply
    1,255.50x = 1,882.22 × 475.06
  4. Step 4: Simplify right side
    1,255.50x = 894,167.43
  5. Step 5: Solve for x
    x = 894,167.43/1,255.50
  6. Step 6: Final answer
    x = 712.20

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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.