Finding the Fourth Proportional to 298,872.80, 447,704.40 and 186,207.20
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Solution
The fourth proportional to 298,872.80, 447,704.40 and 186,207.20 is: 278,933.99
Step by Step Solution
- Step 1: Write the proportion equation
298,872.80 : 447,704.40 = 186,207.20 : x - Step 2: Convert to fraction form
298,872.80/447,704.40 = 186,207.20/x - Step 3: Cross multiply
298,872.80x = 447,704.40 × 186,207.20 - Step 4: Simplify right side
298,872.80x = 83,365,782,751.68 - Step 5: Solve for x
x = 83,365,782,751.68/298,872.80 - Step 6: Final answer
x = 278,933.99
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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.