Finding the Fourth Proportional to 235,917.63, 325,568.07 and 128,485.53
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Solution
The fourth proportional to 235,917.63, 325,568.07 and 128,485.53 is: 177,310.98
Step by Step Solution
- Step 1: Write the proportion equation
235,917.63 : 325,568.07 = 128,485.53 : x - Step 2: Convert to fraction form
235,917.63/325,568.07 = 128,485.53/x - Step 3: Cross multiply
235,917.63x = 325,568.07 × 128,485.53 - Step 4: Simplify right side
235,917.63x = 41,830,786,025.03 - Step 5: Solve for x
x = 41,830,786,025.03/235,917.63 - Step 6: Final answer
x = 177,310.98
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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.