Finding the Fourth Proportional to 235,517.40, 325,010.87 and 128,085.12
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Solution
The fourth proportional to 235,517.40, 325,010.87 and 128,085.12 is: 176,755.75
Step by Step Solution
- Step 1: Write the proportion equation
235,517.40 : 325,010.87 = 128,085.12 : x - Step 2: Convert to fraction form
235,517.40/325,010.87 = 128,085.12/x - Step 3: Cross multiply
235,517.40x = 325,010.87 × 128,085.12 - Step 4: Simplify right side
235,517.40x = 41,629,054,019.77 - Step 5: Solve for x
x = 41,629,054,019.77/235,517.40 - Step 6: Final answer
x = 176,755.75
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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.