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Finding the Fourth Proportional to 201.22, 277.05 and 177.56

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Solution

The fourth proportional to 201.22, 277.05 and 177.56 is: 244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.22 : 277.05 = 177.56 : x
  2. Step 2: Convert to fraction form
    201.22/277.05 = 177.56/x
  3. Step 3: Cross multiply
    201.22x = 277.05 × 177.56
  4. Step 4: Simplify right side
    201.22x = 49,193.00
  5. Step 5: Solve for x
    x = 49,193.00/201.22
  6. Step 6: Final answer
    x = 244.47

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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.