Finding the Fourth Proportional to 221,455.80, 332,183.70 and 215,623.80
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Solution
The fourth proportional to 221,455.80, 332,183.70 and 215,623.80 is: 323,435.70
Step by Step Solution
- Step 1: Write the proportion equation
221,455.80 : 332,183.70 = 215,623.80 : x - Step 2: Convert to fraction form
221,455.80/332,183.70 = 215,623.80/x - Step 3: Cross multiply
221,455.80x = 332,183.70 × 215,623.80 - Step 4: Simplify right side
221,455.80x = 71,626,711,692.06 - Step 5: Solve for x
x = 71,626,711,692.06/221,455.80 - Step 6: Final answer
x = 323,435.70
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1.5x scale
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.