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Finding the Fourth Proportional to 193.19, 288.52 and 154.73

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Solution

The fourth proportional to 193.19, 288.52 and 154.73 is: 231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.19 : 288.52 = 154.73 : x
  2. Step 2: Convert to fraction form
    193.19/288.52 = 154.73/x
  3. Step 3: Cross multiply
    193.19x = 288.52 × 154.73
  4. Step 4: Simplify right side
    193.19x = 44,642.70
  5. Step 5: Solve for x
    x = 44,642.70/193.19
  6. Step 6: Final answer
    x = 231.08

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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.