Finding the Fourth Proportional to 201.19, 277.64 and 112.68
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Solution
The fourth proportional to 201.19, 277.64 and 112.68 is: 155.50
Step by Step Solution
- Step 1: Write the proportion equation
201.19 : 277.64 = 112.68 : x - Step 2: Convert to fraction form
201.19/277.64 = 112.68/x - Step 3: Cross multiply
201.19x = 277.64 × 112.68 - Step 4: Simplify right side
201.19x = 31,284.48 - Step 5: Solve for x
x = 31,284.48/201.19 - Step 6: Final answer
x = 155.50
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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.