Finding the Fourth Proportional to 201.87, 277.82 and 186.99
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Solution
The fourth proportional to 201.87, 277.82 and 186.99 is: 257.34
Step by Step Solution
- Step 1: Write the proportion equation
201.87 : 277.82 = 186.99 : x - Step 2: Convert to fraction form
201.87/277.82 = 186.99/x - Step 3: Cross multiply
201.87x = 277.82 × 186.99 - Step 4: Simplify right side
201.87x = 51,948.63 - Step 5: Solve for x
x = 51,948.63/201.87 - Step 6: Final answer
x = 257.34
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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.