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Finding the Fourth Proportional to 213.36, 294 and 195.60

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Solution

The fourth proportional to 213.36, 294 and 195.60 is: 269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.36 : 294 = 195.60 : x
  2. Step 2: Convert to fraction form
    213.36/294 = 195.60/x
  3. Step 3: Cross multiply
    213.36x = 294 × 195.60
  4. Step 4: Simplify right side
    213.36x = 57,506.40
  5. Step 5: Solve for x
    x = 57,506.40/213.36
  6. Step 6: Final answer
    x = 269.53

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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.