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Finding the Fourth Proportional to 447.37, 670.53 and 173.31

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Solution

The fourth proportional to 447.37, 670.53 and 173.31 is: 259.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.37 : 670.53 = 173.31 : x
  2. Step 2: Convert to fraction form
    447.37/670.53 = 173.31/x
  3. Step 3: Cross multiply
    447.37x = 670.53 × 173.31
  4. Step 4: Simplify right side
    447.37x = 116,209.55
  5. Step 5: Solve for x
    x = 116,209.55/447.37
  6. Step 6: Final answer
    x = 259.76

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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.