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Finding the Fourth Proportional to 325.22, 448.34 and 220.14

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Solution

The fourth proportional to 325.22, 448.34 and 220.14 is: 303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.22 : 448.34 = 220.14 : x
  2. Step 2: Convert to fraction form
    325.22/448.34 = 220.14/x
  3. Step 3: Cross multiply
    325.22x = 448.34 × 220.14
  4. Step 4: Simplify right side
    325.22x = 98,696.44
  5. Step 5: Solve for x
    x = 98,696.44/325.22
  6. Step 6: Final answer
    x = 303.48

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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.