Finding the Fourth Proportional to 235,803.62, 325,415.81 and 128,375.48
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Solution
The fourth proportional to 235,803.62, 325,415.81 and 128,375.48 is: 177,161.88
Step by Step Solution
- Step 1: Write the proportion equation
235,803.62 : 325,415.81 = 128,375.48 : x - Step 2: Convert to fraction form
235,803.62/325,415.81 = 128,375.48/x - Step 3: Cross multiply
235,803.62x = 325,415.81 × 128,375.48 - Step 4: Simplify right side
235,803.62x = 41,775,411,942.82 - Step 5: Solve for x
x = 41,775,411,942.82/235,803.62 - Step 6: Final answer
x = 177,161.88
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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.