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Finding the Fourth Proportional to 446.02, 671.63 and 331.27

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Solution

The fourth proportional to 446.02, 671.63 and 331.27 is: 498.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.02 : 671.63 = 331.27 : x
  2. Step 2: Convert to fraction form
    446.02/671.63 = 331.27/x
  3. Step 3: Cross multiply
    446.02x = 671.63 × 331.27
  4. Step 4: Simplify right side
    446.02x = 222,490.87
  5. Step 5: Solve for x
    x = 222,490.87/446.02
  6. Step 6: Final answer
    x = 498.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.