Finding the Fourth Proportional to 235,879.53, 325,503.92 and 128,449.29
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Solution
The fourth proportional to 235,879.53, 325,503.92 and 128,449.29 is: 177,254.66
Step by Step Solution
- Step 1: Write the proportion equation
235,879.53 : 325,503.92 = 128,449.29 : x - Step 2: Convert to fraction form
235,879.53/325,503.92 = 128,449.29/x - Step 3: Cross multiply
235,879.53x = 325,503.92 × 128,449.29 - Step 4: Simplify right side
235,879.53x = 41,810,746,773.97 - Step 5: Solve for x
x = 41,810,746,773.97/235,879.53 - Step 6: Final answer
x = 177,254.66
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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.