Finding the Fourth Proportional to 201.44, 279.14 and 193.88
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Solution
The fourth proportional to 201.44, 279.14 and 193.88 is: 268.66
Step by Step Solution
- Step 1: Write the proportion equation
201.44 : 279.14 = 193.88 : x - Step 2: Convert to fraction form
201.44/279.14 = 193.88/x - Step 3: Cross multiply
201.44x = 279.14 × 193.88 - Step 4: Simplify right side
201.44x = 54,119.66 - Step 5: Solve for x
x = 54,119.66/201.44 - Step 6: Final answer
x = 268.66
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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.