Finding the Fourth Proportional to 311,682.94, 430,122.56 and 177,546.94
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Solution
The fourth proportional to 311,682.94, 430,122.56 and 177,546.94 is: 245,014.83
Step by Step Solution
- Step 1: Write the proportion equation
311,682.94 : 430,122.56 = 177,546.94 : x - Step 2: Convert to fraction form
311,682.94/430,122.56 = 177,546.94/x - Step 3: Cross multiply
311,682.94x = 430,122.56 × 177,546.94 - Step 4: Simplify right side
311,682.94x = 76,366,942,389.93 - Step 5: Solve for x
x = 76,366,942,389.93/311,682.94 - Step 6: Final answer
x = 245,014.83
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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.