Finding the Fourth Proportional to 235,826.10, 325,440.05 and 128,396.07
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Solution
The fourth proportional to 235,826.10, 325,440.05 and 128,396.07 is: 177,186.59
Step by Step Solution
- Step 1: Write the proportion equation
235,826.10 : 325,440.05 = 128,396.07 : x - Step 2: Convert to fraction form
235,826.10/325,440.05 = 128,396.07/x - Step 3: Cross multiply
235,826.10x = 325,440.05 × 128,396.07 - Step 4: Simplify right side
235,826.10x = 41,785,222,798.62 - Step 5: Solve for x
x = 41,785,222,798.62/235,826.10 - Step 6: Final answer
x = 177,186.59
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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.