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Finding the Fourth Proportional to 480.44, 662.96 and 293.96

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Solution

The fourth proportional to 480.44, 662.96 and 293.96 is: 405.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.44 : 662.96 = 293.96 : x
  2. Step 2: Convert to fraction form
    480.44/662.96 = 293.96/x
  3. Step 3: Cross multiply
    480.44x = 662.96 × 293.96
  4. Step 4: Simplify right side
    480.44x = 194,883.72
  5. Step 5: Solve for x
    x = 194,883.72/480.44
  6. Step 6: Final answer
    x = 405.64

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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.