Finding the Fourth Proportional to 327,467.80, 491,201.70 and 284,165.20
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Solution
The fourth proportional to 327,467.80, 491,201.70 and 284,165.20 is: 426,247.80
Step by Step Solution
- Step 1: Write the proportion equation
327,467.80 : 491,201.70 = 284,165.20 : x - Step 2: Convert to fraction form
327,467.80/491,201.70 = 284,165.20/x - Step 3: Cross multiply
327,467.80x = 491,201.70 × 284,165.20 - Step 4: Simplify right side
327,467.80x = 139,582,429,320.84 - Step 5: Solve for x
x = 139,582,429,320.84/327,467.80 - Step 6: Final answer
x = 426,247.80
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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.