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Finding the Fourth Proportional to 375.56, 563.22 and 115.46

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Solution

The fourth proportional to 375.56, 563.22 and 115.46 is: 173.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.56 : 563.22 = 115.46 : x
  2. Step 2: Convert to fraction form
    375.56/563.22 = 115.46/x
  3. Step 3: Cross multiply
    375.56x = 563.22 × 115.46
  4. Step 4: Simplify right side
    375.56x = 65,029.38
  5. Step 5: Solve for x
    x = 65,029.38/375.56
  6. Step 6: Final answer
    x = 173.15

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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.