Finding the Fourth Proportional to 121.75, 182.63 and 36.25
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Solution
The fourth proportional to 121.75, 182.63 and 36.25 is: 54.38
Step by Step Solution
- Step 1: Write the proportion equation
121.75 : 182.63 = 36.25 : x - Step 2: Convert to fraction form
121.75/182.63 = 36.25/x - Step 3: Cross multiply
121.75x = 182.63 × 36.25 - Step 4: Simplify right side
121.75x = 6,620.34 - Step 5: Solve for x
x = 6,620.34/121.75 - Step 6: Final answer
x = 54.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.