Finding the Fourth Proportional to 211,793.92, 317,757.44 and 87,193.60
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Solution
The fourth proportional to 211,793.92, 317,757.44 and 87,193.60 is: 130,817.80
Step by Step Solution
- Step 1: Write the proportion equation
211,793.92 : 317,757.44 = 87,193.60 : x - Step 2: Convert to fraction form
211,793.92/317,757.44 = 87,193.60/x - Step 3: Cross multiply
211,793.92x = 317,757.44 × 87,193.60 - Step 4: Simplify right side
211,793.92x = 27,706,415,120.38 - Step 5: Solve for x
x = 27,706,415,120.38/211,793.92 - Step 6: Final answer
x = 130,817.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.