Finding the Fourth Proportional to 201.36, 279.62 and 199.74
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Solution
The fourth proportional to 201.36, 279.62 and 199.74 is: 277.37
Step by Step Solution
- Step 1: Write the proportion equation
201.36 : 279.62 = 199.74 : x - Step 2: Convert to fraction form
201.36/279.62 = 199.74/x - Step 3: Cross multiply
201.36x = 279.62 × 199.74 - Step 4: Simplify right side
201.36x = 55,850.30 - Step 5: Solve for x
x = 55,850.30/201.36 - Step 6: Final answer
x = 277.37
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.