Finding the Fourth Proportional to 201,639.20, 302,458.80 and 198,528.80
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Solution
The fourth proportional to 201,639.20, 302,458.80 and 198,528.80 is: 297,793.20
Step by Step Solution
- Step 1: Write the proportion equation
201,639.20 : 302,458.80 = 198,528.80 : x - Step 2: Convert to fraction form
201,639.20/302,458.80 = 198,528.80/x - Step 3: Cross multiply
201,639.20x = 302,458.80 × 198,528.80 - Step 4: Simplify right side
201,639.20x = 60,046,782,613.44 - Step 5: Solve for x
x = 60,046,782,613.44/201,639.20 - Step 6: Final answer
x = 297,793.20
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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.