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Finding the Fourth Proportional to 440.66, 608.09 and 254.15

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Solution

The fourth proportional to 440.66, 608.09 and 254.15 is: 350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.66 : 608.09 = 254.15 : x
  2. Step 2: Convert to fraction form
    440.66/608.09 = 254.15/x
  3. Step 3: Cross multiply
    440.66x = 608.09 × 254.15
  4. Step 4: Simplify right side
    440.66x = 154,546.96
  5. Step 5: Solve for x
    x = 154,546.96/440.66
  6. Step 6: Final answer
    x = 350.72

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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.