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Finding the Fourth Proportional to 348.22, 480.59 and 217.27

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Solution

The fourth proportional to 348.22, 480.59 and 217.27 is: 299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.22 : 480.59 = 217.27 : x
  2. Step 2: Convert to fraction form
    348.22/480.59 = 217.27/x
  3. Step 3: Cross multiply
    348.22x = 480.59 × 217.27
  4. Step 4: Simplify right side
    348.22x = 104,417.13
  5. Step 5: Solve for x
    x = 104,417.13/348.22
  6. Step 6: Final answer
    x = 299.86

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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.