Finding the Fourth Proportional to 201.15, 277.52 and 122.44
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Solution
The fourth proportional to 201.15, 277.52 and 122.44 is: 168.92
Step by Step Solution
- Step 1: Write the proportion equation
201.15 : 277.52 = 122.44 : x - Step 2: Convert to fraction form
201.15/277.52 = 122.44/x - Step 3: Cross multiply
201.15x = 277.52 × 122.44 - Step 4: Simplify right side
201.15x = 33,977.55 - Step 5: Solve for x
x = 33,977.55/201.15 - Step 6: Final answer
x = 168.92
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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.