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Finding the Fourth Proportional to 223.45, 333.51 and 192.47

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Solution

The fourth proportional to 223.45, 333.51 and 192.47 is: 287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.45 : 333.51 = 192.47 : x
  2. Step 2: Convert to fraction form
    223.45/333.51 = 192.47/x
  3. Step 3: Cross multiply
    223.45x = 333.51 × 192.47
  4. Step 4: Simplify right side
    223.45x = 64,190.67
  5. Step 5: Solve for x
    x = 64,190.67/223.45
  6. Step 6: Final answer
    x = 287.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.