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Finding the Fourth Proportional to 349.00, 481.66 and 216.18

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Solution

The fourth proportional to 349.00, 481.66 and 216.18 is: 298.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.00 : 481.66 = 216.18 : x
  2. Step 2: Convert to fraction form
    349.00/481.66 = 216.18/x
  3. Step 3: Cross multiply
    349.00x = 481.66 × 216.18
  4. Step 4: Simplify right side
    349.00x = 104,124.72
  5. Step 5: Solve for x
    x = 104,124.72/349.00
  6. Step 6: Final answer
    x = 298.35

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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.