Finding the Fourth Proportional to 221,715.20, 332,135.40 and 132,704.30
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Solution
The fourth proportional to 221,715.20, 332,135.40 and 132,704.30 is: 198,794.65
Step by Step Solution
- Step 1: Write the proportion equation
221,715.20 : 332,135.40 = 132,704.30 : x - Step 2: Convert to fraction form
221,715.20/332,135.40 = 132,704.30/x - Step 3: Cross multiply
221,715.20x = 332,135.40 × 132,704.30 - Step 4: Simplify right side
221,715.20x = 44,075,795,762.22 - Step 5: Solve for x
x = 44,075,795,762.22/221,715.20 - Step 6: Final answer
x = 198,794.65
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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.