Finding the Fourth Proportional to 201.55, 277.99 and 126.79
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Solution
The fourth proportional to 201.55, 277.99 and 126.79 is: 174.88
Step by Step Solution
- Step 1: Write the proportion equation
201.55 : 277.99 = 126.79 : x - Step 2: Convert to fraction form
201.55/277.99 = 126.79/x - Step 3: Cross multiply
201.55x = 277.99 × 126.79 - Step 4: Simplify right side
201.55x = 35,246.59 - Step 5: Solve for x
x = 35,246.59/201.55 - Step 6: Final answer
x = 174.88
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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.