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Finding the Fourth Proportional to 177.36, 244.73 and 111.95

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Solution

The fourth proportional to 177.36, 244.73 and 111.95 is: 154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.36 : 244.73 = 111.95 : x
  2. Step 2: Convert to fraction form
    177.36/244.73 = 111.95/x
  3. Step 3: Cross multiply
    177.36x = 244.73 × 111.95
  4. Step 4: Simplify right side
    177.36x = 27,396.96
  5. Step 5: Solve for x
    x = 27,396.96/177.36
  6. Step 6: Final answer
    x = 154.47

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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.