Finding the Fourth Proportional to 201.26, 277.66 and 154.55
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Solution
The fourth proportional to 201.26, 277.66 and 154.55 is: 213.22
Step by Step Solution
- Step 1: Write the proportion equation
201.26 : 277.66 = 154.55 : x - Step 2: Convert to fraction form
201.26/277.66 = 154.55/x - Step 3: Cross multiply
201.26x = 277.66 × 154.55 - Step 4: Simplify right side
201.26x = 42,913.24 - Step 5: Solve for x
x = 42,913.24/201.26 - Step 6: Final answer
x = 213.22
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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.