Finding the Fourth Proportional to 235.26, 352.91 and 72.92
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Solution
The fourth proportional to 235.26, 352.91 and 72.92 is: 109.39
Step by Step Solution
- Step 1: Write the proportion equation
235.26 : 352.91 = 72.92 : x - Step 2: Convert to fraction form
235.26/352.91 = 72.92/x - Step 3: Cross multiply
235.26x = 352.91 × 72.92 - Step 4: Simplify right side
235.26x = 25,734.99 - Step 5: Solve for x
x = 25,734.99/235.26 - Step 6: Final answer
x = 109.39
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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.