Finding the Fourth Proportional to 113.68, 170.49 and 36.63
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Solution
The fourth proportional to 113.68, 170.49 and 36.63 is: 54.94
Step by Step Solution
- Step 1: Write the proportion equation
113.68 : 170.49 = 36.63 : x - Step 2: Convert to fraction form
113.68/170.49 = 36.63/x - Step 3: Cross multiply
113.68x = 170.49 × 36.63 - Step 4: Simplify right side
113.68x = 6,245.05 - Step 5: Solve for x
x = 6,245.05/113.68 - Step 6: Final answer
x = 54.94
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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.