Finding the Fourth Proportional to 195,745.68, 270,240.96 and 128,872.08
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Solution
The fourth proportional to 195,745.68, 270,240.96 and 128,872.08 is: 177,917.16
Step by Step Solution
- Step 1: Write the proportion equation
195,745.68 : 270,240.96 = 128,872.08 : x - Step 2: Convert to fraction form
195,745.68/270,240.96 = 128,872.08/x - Step 3: Cross multiply
195,745.68x = 270,240.96 × 128,872.08 - Step 4: Simplify right side
195,745.68x = 34,826,514,616.40 - Step 5: Solve for x
x = 34,826,514,616.40/195,745.68 - Step 6: Final answer
x = 177,917.16
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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.