Finding the Fourth Proportional to 207,635.20, 311,452.80 and 203,698.60
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Solution
The fourth proportional to 207,635.20, 311,452.80 and 203,698.60 is: 305,547.90
Step by Step Solution
- Step 1: Write the proportion equation
207,635.20 : 311,452.80 = 203,698.60 : x - Step 2: Convert to fraction form
207,635.20/311,452.80 = 203,698.60/x - Step 3: Cross multiply
207,635.20x = 311,452.80 × 203,698.60 - Step 4: Simplify right side
207,635.20x = 63,442,499,326.08 - Step 5: Solve for x
x = 63,442,499,326.08/207,635.20 - Step 6: Final answer
x = 305,547.90
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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.