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Finding the Fourth Proportional to 375.67, 563.36 and 170.40

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Solution

The fourth proportional to 375.67, 563.36 and 170.40 is: 255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.67 : 563.36 = 170.40 : x
  2. Step 2: Convert to fraction form
    375.67/563.36 = 170.40/x
  3. Step 3: Cross multiply
    375.67x = 563.36 × 170.40
  4. Step 4: Simplify right side
    375.67x = 95,997.80
  5. Step 5: Solve for x
    x = 95,997.80/375.67
  6. Step 6: Final answer
    x = 255.54

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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.