Finding the Fourth Proportional to 396,909.48, 547,745.58 and 227,198.28
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Solution
The fourth proportional to 396,909.48, 547,745.58 and 227,198.28 is: 313,539.64
Step by Step Solution
- Step 1: Write the proportion equation
396,909.48 : 547,745.58 = 227,198.28 : x - Step 2: Convert to fraction form
396,909.48/547,745.58 = 227,198.28/x - Step 3: Cross multiply
396,909.48x = 547,745.58 × 227,198.28 - Step 4: Simplify right side
396,909.48x = 124,446,853,653.60 - Step 5: Solve for x
x = 124,446,853,653.60/396,909.48 - Step 6: Final answer
x = 313,539.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.