Finding the Fourth Proportional to 311,845.26, 430,346.07 and 168,604.95
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Solution
The fourth proportional to 311,845.26, 430,346.07 and 168,604.95 is: 232,674.62
Step by Step Solution
- Step 1: Write the proportion equation
311,845.26 : 430,346.07 = 168,604.95 : x - Step 2: Convert to fraction form
311,845.26/430,346.07 = 168,604.95/x - Step 3: Cross multiply
311,845.26x = 430,346.07 × 168,604.95 - Step 4: Simplify right side
311,845.26x = 72,558,477,615.05 - Step 5: Solve for x
x = 72,558,477,615.05/311,845.26 - Step 6: Final answer
x = 232,674.62
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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.