Finding the Fourth Proportional to 121.52, 182.26 and 44.55
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Solution
The fourth proportional to 121.52, 182.26 and 44.55 is: 66.82
Step by Step Solution
- Step 1: Write the proportion equation
121.52 : 182.26 = 44.55 : x - Step 2: Convert to fraction form
121.52/182.26 = 44.55/x - Step 3: Cross multiply
121.52x = 182.26 × 44.55 - Step 4: Simplify right side
121.52x = 8,119.68 - Step 5: Solve for x
x = 8,119.68/121.52 - Step 6: Final answer
x = 66.82
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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.