Finding the Fourth Proportional to 201.28, 277.56 and 170.26
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Solution
The fourth proportional to 201.28, 277.56 and 170.26 is: 234.78
Step by Step Solution
- Step 1: Write the proportion equation
201.28 : 277.56 = 170.26 : x - Step 2: Convert to fraction form
201.28/277.56 = 170.26/x - Step 3: Cross multiply
201.28x = 277.56 × 170.26 - Step 4: Simplify right side
201.28x = 47,257.37 - Step 5: Solve for x
x = 47,257.37/201.28 - Step 6: Final answer
x = 234.78
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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.