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Finding the Fourth Proportional to 216, 298.56 and 184.96

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Solution

The fourth proportional to 216, 298.56 and 184.96 is: 255.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216 : 298.56 = 184.96 : x
  2. Step 2: Convert to fraction form
    216/298.56 = 184.96/x
  3. Step 3: Cross multiply
    216x = 298.56 × 184.96
  4. Step 4: Simplify right side
    216x = 55,221.66
  5. Step 5: Solve for x
    x = 55,221.66/216
  6. Step 6: Final answer
    x = 255.66

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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.