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Finding the Fourth Proportional to 350.04, 481.98 and 287.64

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Solution

The fourth proportional to 350.04, 481.98 and 287.64 is: 396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.04 : 481.98 = 287.64 : x
  2. Step 2: Convert to fraction form
    350.04/481.98 = 287.64/x
  3. Step 3: Cross multiply
    350.04x = 481.98 × 287.64
  4. Step 4: Simplify right side
    350.04x = 138,636.73
  5. Step 5: Solve for x
    x = 138,636.73/350.04
  6. Step 6: Final answer
    x = 396.06

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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.