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Finding the Fourth Proportional to 221.37, 304.74 and 192.25

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Solution

The fourth proportional to 221.37, 304.74 and 192.25 is: 264.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.37 : 304.74 = 192.25 : x
  2. Step 2: Convert to fraction form
    221.37/304.74 = 192.25/x
  3. Step 3: Cross multiply
    221.37x = 304.74 × 192.25
  4. Step 4: Simplify right side
    221.37x = 58,586.65
  5. Step 5: Solve for x
    x = 58,586.65/221.37
  6. Step 6: Final answer
    x = 264.66

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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.