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Finding the Fourth Proportional to 475.45, 713.21 and 150.85

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Solution

The fourth proportional to 475.45, 713.21 and 150.85 is: 226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.45 : 713.21 = 150.85 : x
  2. Step 2: Convert to fraction form
    475.45/713.21 = 150.85/x
  3. Step 3: Cross multiply
    475.45x = 713.21 × 150.85
  4. Step 4: Simplify right side
    475.45x = 107,583.85
  5. Step 5: Solve for x
    x = 107,583.85/475.45
  6. Step 6: Final answer
    x = 226.28

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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.