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Finding the Fourth Proportional to 445.47, 667.23 and 367.56

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Solution

The fourth proportional to 445.47, 667.23 and 367.56 is: 550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.47 : 667.23 = 367.56 : x
  2. Step 2: Convert to fraction form
    445.47/667.23 = 367.56/x
  3. Step 3: Cross multiply
    445.47x = 667.23 × 367.56
  4. Step 4: Simplify right side
    445.47x = 245,247.06
  5. Step 5: Solve for x
    x = 245,247.06/445.47
  6. Step 6: Final answer
    x = 550.54

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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.