Finding the Fourth Proportional to 201.24, 277.67 and 112.70
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Solution
The fourth proportional to 201.24, 277.67 and 112.70 is: 155.50
Step by Step Solution
- Step 1: Write the proportion equation
201.24 : 277.67 = 112.70 : x - Step 2: Convert to fraction form
201.24/277.67 = 112.70/x - Step 3: Cross multiply
201.24x = 277.67 × 112.70 - Step 4: Simplify right side
201.24x = 31,293.41 - Step 5: Solve for x
x = 31,293.41/201.24 - 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.