Finding the Fourth Proportional to 235,879.75, 325,504.29 and 128,449.54
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Solution
The fourth proportional to 235,879.75, 325,504.29 and 128,449.54 is: 177,255.05
Step by Step Solution
- Step 1: Write the proportion equation
235,879.75 : 325,504.29 = 128,449.54 : x - Step 2: Convert to fraction form
235,879.75/325,504.29 = 128,449.54/x - Step 3: Cross multiply
235,879.75x = 325,504.29 × 128,449.54 - Step 4: Simplify right side
235,879.75x = 41,810,876,318.53 - Step 5: Solve for x
x = 41,810,876,318.53/235,879.75 - Step 6: Final answer
x = 177,255.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.