Finding the Fourth Proportional to 201.28, 277.74 and 126.58
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Solution
The fourth proportional to 201.28, 277.74 and 126.58 is: 174.66
Step by Step Solution
- Step 1: Write the proportion equation
201.28 : 277.74 = 126.58 : x - Step 2: Convert to fraction form
201.28/277.74 = 126.58/x - Step 3: Cross multiply
201.28x = 277.74 × 126.58 - Step 4: Simplify right side
201.28x = 35,156.33 - Step 5: Solve for x
x = 35,156.33/201.28 - Step 6: Final answer
x = 174.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.