Finding the Fourth Proportional to 327,120.40, 490,680.60 and 201,149.20
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Solution
The fourth proportional to 327,120.40, 490,680.60 and 201,149.20 is: 301,723.80
Step by Step Solution
- Step 1: Write the proportion equation
327,120.40 : 490,680.60 = 201,149.20 : x - Step 2: Convert to fraction form
327,120.40/490,680.60 = 201,149.20/x - Step 3: Cross multiply
327,120.40x = 490,680.60 × 201,149.20 - Step 4: Simplify right side
327,120.40x = 98,700,010,145.52 - Step 5: Solve for x
x = 98,700,010,145.52/327,120.40 - Step 6: Final answer
x = 301,723.80
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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.