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Finding the Fourth Proportional to 220.36, 303.40 and 195.08

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Solution

The fourth proportional to 220.36, 303.40 and 195.08 is: 268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.36 : 303.40 = 195.08 : x
  2. Step 2: Convert to fraction form
    220.36/303.40 = 195.08/x
  3. Step 3: Cross multiply
    220.36x = 303.40 × 195.08
  4. Step 4: Simplify right side
    220.36x = 59,187.27
  5. Step 5: Solve for x
    x = 59,187.27/220.36
  6. Step 6: Final answer
    x = 268.59

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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.