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Finding the Fourth Proportional to 193.36, 265.28 and 188.56

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Solution

The fourth proportional to 193.36, 265.28 and 188.56 is: 258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.36 : 265.28 = 188.56 : x
  2. Step 2: Convert to fraction form
    193.36/265.28 = 188.56/x
  3. Step 3: Cross multiply
    193.36x = 265.28 × 188.56
  4. Step 4: Simplify right side
    193.36x = 50,021.20
  5. Step 5: Solve for x
    x = 50,021.20/193.36
  6. Step 6: Final answer
    x = 258.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.