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Finding the Fourth Proportional to 447.53, 670.27 and 216.59

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Solution

The fourth proportional to 447.53, 670.27 and 216.59 is: 324.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.53 : 670.27 = 216.59 : x
  2. Step 2: Convert to fraction form
    447.53/670.27 = 216.59/x
  3. Step 3: Cross multiply
    447.53x = 670.27 × 216.59
  4. Step 4: Simplify right side
    447.53x = 145,173.78
  5. Step 5: Solve for x
    x = 145,173.78/447.53
  6. Step 6: Final answer
    x = 324.39

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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.