Finding the Fourth Proportional to 157.43, 236.18 and 108.99
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Solution
The fourth proportional to 157.43, 236.18 and 108.99 is: 163.51
Step by Step Solution
- Step 1: Write the proportion equation
157.43 : 236.18 = 108.99 : x - Step 2: Convert to fraction form
157.43/236.18 = 108.99/x - Step 3: Cross multiply
157.43x = 236.18 × 108.99 - Step 4: Simplify right side
157.43x = 25,741.53 - Step 5: Solve for x
x = 25,741.53/157.43 - Step 6: Final answer
x = 163.51
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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.