Finding the Fourth Proportional to 201.05, 277.44 and 122.39
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Solution
The fourth proportional to 201.05, 277.44 and 122.39 is: 168.89
Step by Step Solution
- Step 1: Write the proportion equation
201.05 : 277.44 = 122.39 : x - Step 2: Convert to fraction form
201.05/277.44 = 122.39/x - Step 3: Cross multiply
201.05x = 277.44 × 122.39 - Step 4: Simplify right side
201.05x = 33,954.49 - Step 5: Solve for x
x = 33,954.49/201.05 - Step 6: Final answer
x = 168.89
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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.