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Finding the Fourth Proportional to 481.51, 663.77 and 294.87

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Solution

The fourth proportional to 481.51, 663.77 and 294.87 is: 406.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.51 : 663.77 = 294.87 : x
  2. Step 2: Convert to fraction form
    481.51/663.77 = 294.87/x
  3. Step 3: Cross multiply
    481.51x = 663.77 × 294.87
  4. Step 4: Simplify right side
    481.51x = 195,729.09
  5. Step 5: Solve for x
    x = 195,729.09/481.51
  6. Step 6: Final answer
    x = 406.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.