Finding the Fourth Proportional to 201.79, 277.71 and 177.18
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Solution
The fourth proportional to 201.79, 277.71 and 177.18 is: 243.85
Step by Step Solution
- Step 1: Write the proportion equation
201.79 : 277.71 = 177.18 : x - Step 2: Convert to fraction form
201.79/277.71 = 177.18/x - Step 3: Cross multiply
201.79x = 277.71 × 177.18 - Step 4: Simplify right side
201.79x = 49,204.66 - Step 5: Solve for x
x = 49,204.66/201.79 - Step 6: Final answer
x = 243.85
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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.