Finding the Fourth Proportional to 311,866.46, 430,375.43 and 168,626.19
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Solution
The fourth proportional to 311,866.46, 430,375.43 and 168,626.19 is: 232,703.99
Step by Step Solution
- Step 1: Write the proportion equation
311,866.46 : 430,375.43 = 168,626.19 : x - Step 2: Convert to fraction form
311,866.46/430,375.43 = 168,626.19/x - Step 3: Cross multiply
311,866.46x = 430,375.43 × 168,626.19 - Step 4: Simplify right side
311,866.46x = 72,572,568,187.38 - Step 5: Solve for x
x = 72,572,568,187.38/311,866.46 - Step 6: Final answer
x = 232,703.99
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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.