Finding the Fourth Proportional to 311,761.02, 430,232.19 and 168,520.74
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Solution
The fourth proportional to 311,761.02, 430,232.19 and 168,520.74 is: 232,559.69
Step by Step Solution
- Step 1: Write the proportion equation
311,761.02 : 430,232.19 = 168,520.74 : x - Step 2: Convert to fraction form
311,761.02/430,232.19 = 168,520.74/x - Step 3: Cross multiply
311,761.02x = 430,232.19 × 168,520.74 - Step 4: Simplify right side
311,761.02x = 72,503,047,030.62 - Step 5: Solve for x
x = 72,503,047,030.62/311,761.02 - Step 6: Final answer
x = 232,559.69
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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.