Finding the Fourth Proportional to 208,982.44, 288,396.84 and 113,489.92
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Solution
The fourth proportional to 208,982.44, 288,396.84 and 113,489.92 is: 156,616.67
Step by Step Solution
- Step 1: Write the proportion equation
208,982.44 : 288,396.84 = 113,489.92 : x - Step 2: Convert to fraction form
208,982.44/288,396.84 = 113,489.92/x - Step 3: Cross multiply
208,982.44x = 288,396.84 × 113,489.92 - Step 4: Simplify right side
208,982.44x = 32,730,134,299.85 - Step 5: Solve for x
x = 32,730,134,299.85/208,982.44 - Step 6: Final answer
x = 156,616.67
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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.