Finding the Fourth Proportional to 168.26, 251.98 and 113.99
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Solution
The fourth proportional to 168.26, 251.98 and 113.99 is: 170.70
Step by Step Solution
- Step 1: Write the proportion equation
168.26 : 251.98 = 113.99 : x - Step 2: Convert to fraction form
168.26/251.98 = 113.99/x - Step 3: Cross multiply
168.26x = 251.98 × 113.99 - Step 4: Simplify right side
168.26x = 28,722.11 - Step 5: Solve for x
x = 28,722.11/168.26 - Step 6: Final answer
x = 170.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.