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Finding the Fourth Proportional to 223.32, 336.93 and 222.72

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Solution

The fourth proportional to 223.32, 336.93 and 222.72 is: 336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.32 : 336.93 = 222.72 : x
  2. Step 2: Convert to fraction form
    223.32/336.93 = 222.72/x
  3. Step 3: Cross multiply
    223.32x = 336.93 × 222.72
  4. Step 4: Simplify right side
    223.32x = 75,041.05
  5. Step 5: Solve for x
    x = 75,041.05/223.32
  6. Step 6: Final answer
    x = 336.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.