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Finding the Fourth Proportional to 348.66, 481.35 and 230.64

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Solution

The fourth proportional to 348.66, 481.35 and 230.64 is: 318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.66 : 481.35 = 230.64 : x
  2. Step 2: Convert to fraction form
    348.66/481.35 = 230.64/x
  3. Step 3: Cross multiply
    348.66x = 481.35 × 230.64
  4. Step 4: Simplify right side
    348.66x = 111,018.56
  5. Step 5: Solve for x
    x = 111,018.56/348.66
  6. Step 6: Final answer
    x = 318.41

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