Finding the Fourth Proportional to 311,761.12, 430,193.78 and 175,786.96
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Solution
The fourth proportional to 311,761.12, 430,193.78 and 175,786.96 is: 242,565.39
Step by Step Solution
- Step 1: Write the proportion equation
311,761.12 : 430,193.78 = 175,786.96 : x - Step 2: Convert to fraction form
311,761.12/430,193.78 = 175,786.96/x - Step 3: Cross multiply
311,761.12x = 430,193.78 × 175,786.96 - Step 4: Simplify right side
311,761.12x = 75,622,456,797.11 - Step 5: Solve for x
x = 75,622,456,797.11/311,761.12 - Step 6: Final answer
x = 242,565.39
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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.