Finding the Fourth Proportional to 235.44, 352.96 and 91.26
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Solution
The fourth proportional to 235.44, 352.96 and 91.26 is: 136.81
Step by Step Solution
- Step 1: Write the proportion equation
235.44 : 352.96 = 91.26 : x - Step 2: Convert to fraction form
235.44/352.96 = 91.26/x - Step 3: Cross multiply
235.44x = 352.96 × 91.26 - Step 4: Simplify right side
235.44x = 32,211.13 - Step 5: Solve for x
x = 32,211.13/235.44 - Step 6: Final answer
x = 136.81
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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.