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Finding the Fourth Proportional to 475.22, 712.71 and 150.56

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Solution

The fourth proportional to 475.22, 712.71 and 150.56 is: 225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.22 : 712.71 = 150.56 : x
  2. Step 2: Convert to fraction form
    475.22/712.71 = 150.56/x
  3. Step 3: Cross multiply
    475.22x = 712.71 × 150.56
  4. Step 4: Simplify right side
    475.22x = 107,305.62
  5. Step 5: Solve for x
    x = 107,305.62/475.22
  6. Step 6: Final answer
    x = 225.80

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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.