Finding the Fourth Proportional to 307,205.20, 460,872.60 and 129,620.80
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Solution
The fourth proportional to 307,205.20, 460,872.60 and 129,620.80 is: 194,458.54
Step by Step Solution
- Step 1: Write the proportion equation
307,205.20 : 460,872.60 = 129,620.80 : x - Step 2: Convert to fraction form
307,205.20/460,872.60 = 129,620.80/x - Step 3: Cross multiply
307,205.20x = 460,872.60 × 129,620.80 - Step 4: Simplify right side
307,205.20x = 59,738,675,110.08 - Step 5: Solve for x
x = 59,738,675,110.08/307,205.20 - Step 6: Final answer
x = 194,458.54
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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.