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Finding the Fourth Proportional to 193.52, 288.74 and 187.68

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Solution

The fourth proportional to 193.52, 288.74 and 187.68 is: 280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.52 : 288.74 = 187.68 : x
  2. Step 2: Convert to fraction form
    193.52/288.74 = 187.68/x
  3. Step 3: Cross multiply
    193.52x = 288.74 × 187.68
  4. Step 4: Simplify right side
    193.52x = 54,190.72
  5. Step 5: Solve for x
    x = 54,190.72/193.52
  6. Step 6: Final answer
    x = 280.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.