Finding the Fourth Proportional to 201.44, 277.90 and 135.88
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Solution
The fourth proportional to 201.44, 277.90 and 135.88 is: 187.46
Step by Step Solution
- Step 1: Write the proportion equation
201.44 : 277.90 = 135.88 : x - Step 2: Convert to fraction form
201.44/277.90 = 135.88/x - Step 3: Cross multiply
201.44x = 277.90 × 135.88 - Step 4: Simplify right side
201.44x = 37,761.05 - Step 5: Solve for x
x = 37,761.05/201.44 - Step 6: Final answer
x = 187.46
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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.