Finding the Fourth Proportional to 311,571.36, 467,356.80 and 74,913.96
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Solution
The fourth proportional to 311,571.36, 467,356.80 and 74,913.96 is: 112,370.88
Step by Step Solution
- Step 1: Write the proportion equation
311,571.36 : 467,356.80 = 74,913.96 : x - Step 2: Convert to fraction form
311,571.36/467,356.80 = 74,913.96/x - Step 3: Cross multiply
311,571.36x = 467,356.80 × 74,913.96 - Step 4: Simplify right side
311,571.36x = 35,011,548,620.93 - Step 5: Solve for x
x = 35,011,548,620.93/311,571.36 - Step 6: Final answer
x = 112,370.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.