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Finding the Fourth Proportional to 193.08, 289.35 and 141.93

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Solution

The fourth proportional to 193.08, 289.35 and 141.93 is: 212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.08 : 289.35 = 141.93 : x
  2. Step 2: Convert to fraction form
    193.08/289.35 = 141.93/x
  3. Step 3: Cross multiply
    193.08x = 289.35 × 141.93
  4. Step 4: Simplify right side
    193.08x = 41,067.45
  5. Step 5: Solve for x
    x = 41,067.45/193.08
  6. Step 6: Final answer
    x = 212.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.