Finding the Fourth Proportional to 209,232.92, 288,741.64 and 113,739.62
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Solution
The fourth proportional to 209,232.92, 288,741.64 and 113,739.62 is: 156,960.79
Step by Step Solution
- Step 1: Write the proportion equation
209,232.92 : 288,741.64 = 113,739.62 : x - Step 2: Convert to fraction form
209,232.92/288,741.64 = 113,739.62/x - Step 3: Cross multiply
209,232.92x = 288,741.64 × 113,739.62 - Step 4: Simplify right side
209,232.92x = 32,841,364,411.78 - Step 5: Solve for x
x = 32,841,364,411.78/209,232.92 - Step 6: Final answer
x = 156,960.79
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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.