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Finding the Fourth Proportional to 225.23, 336.53 and 220.37

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Solution

The fourth proportional to 225.23, 336.53 and 220.37 is: 329.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.23 : 336.53 = 220.37 : x
  2. Step 2: Convert to fraction form
    225.23/336.53 = 220.37/x
  3. Step 3: Cross multiply
    225.23x = 336.53 × 220.37
  4. Step 4: Simplify right side
    225.23x = 74,161.26
  5. Step 5: Solve for x
    x = 74,161.26/225.23
  6. Step 6: Final answer
    x = 329.27

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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.