Finding the Fourth Proportional to 221,453.70, 332,137.35 and 71,657.70
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Solution
The fourth proportional to 221,453.70, 332,137.35 and 71,657.70 is: 107,472.57
Step by Step Solution
- Step 1: Write the proportion equation
221,453.70 : 332,137.35 = 71,657.70 : x - Step 2: Convert to fraction form
221,453.70/332,137.35 = 71,657.70/x - Step 3: Cross multiply
221,453.70x = 332,137.35 × 71,657.70 - Step 4: Simplify right side
221,453.70x = 23,800,198,585.10 - Step 5: Solve for x
x = 23,800,198,585.10/221,453.70 - Step 6: Final answer
x = 107,472.57
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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.