Finding the Fourth Proportional to 168.60, 252.99 and 107.67
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Solution
The fourth proportional to 168.60, 252.99 and 107.67 is: 161.56
Step by Step Solution
- Step 1: Write the proportion equation
168.60 : 252.99 = 107.67 : x - Step 2: Convert to fraction form
168.60/252.99 = 107.67/x - Step 3: Cross multiply
168.60x = 252.99 × 107.67 - Step 4: Simplify right side
168.60x = 27,239.43 - Step 5: Solve for x
x = 27,239.43/168.60 - Step 6: Final answer
x = 161.56
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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.