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Finding the Fourth Proportional to 193.05, 265.88 and 151.54

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Solution

The fourth proportional to 193.05, 265.88 and 151.54 is: 208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.05 : 265.88 = 151.54 : x
  2. Step 2: Convert to fraction form
    193.05/265.88 = 151.54/x
  3. Step 3: Cross multiply
    193.05x = 265.88 × 151.54
  4. Step 4: Simplify right side
    193.05x = 40,291.17
  5. Step 5: Solve for x
    x = 40,291.17/193.05
  6. Step 6: Final answer
    x = 208.71

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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.