Finding the Fourth Proportional to 157.39, 236.11 and 49.19
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Solution
The fourth proportional to 157.39, 236.11 and 49.19 is: 73.79
Step by Step Solution
- Step 1: Write the proportion equation
157.39 : 236.11 = 49.19 : x - Step 2: Convert to fraction form
157.39/236.11 = 49.19/x - Step 3: Cross multiply
157.39x = 236.11 × 49.19 - Step 4: Simplify right side
157.39x = 11,613.54 - Step 5: Solve for x
x = 11,613.54/157.39 - Step 6: Final answer
x = 73.79
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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.