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Finding the Fourth Proportional to 193.69, 267.07 and 144.48

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Solution

The fourth proportional to 193.69, 267.07 and 144.48 is: 199.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.69 : 267.07 = 144.48 : x
  2. Step 2: Convert to fraction form
    193.69/267.07 = 144.48/x
  3. Step 3: Cross multiply
    193.69x = 267.07 × 144.48
  4. Step 4: Simplify right side
    193.69x = 38,587.59
  5. Step 5: Solve for x
    x = 38,587.59/193.69
  6. Step 6: Final answer
    x = 199.22

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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.