Finding the Fourth Proportional to 311,571.24, 467,356.86 and 74,913.92
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Solution
The fourth proportional to 311,571.24, 467,356.86 and 74,913.92 is: 112,370.87
Step by Step Solution
- Step 1: Write the proportion equation
311,571.24 : 467,356.86 = 74,913.92 : x - Step 2: Convert to fraction form
311,571.24/467,356.86 = 74,913.92/x - Step 3: Cross multiply
311,571.24x = 467,356.86 × 74,913.92 - Step 4: Simplify right side
311,571.24x = 35,011,532,084.71 - Step 5: Solve for x
x = 35,011,532,084.71/311,571.24 - Step 6: Final answer
x = 112,370.87
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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.