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Finding the Fourth Proportional to 326.36, 450.06 and 222.68

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Solution

The fourth proportional to 326.36, 450.06 and 222.68 is: 307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.36 : 450.06 = 222.68 : x
  2. Step 2: Convert to fraction form
    326.36/450.06 = 222.68/x
  3. Step 3: Cross multiply
    326.36x = 450.06 × 222.68
  4. Step 4: Simplify right side
    326.36x = 100,219.36
  5. Step 5: Solve for x
    x = 100,219.36/326.36
  6. Step 6: Final answer
    x = 307.08

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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.