Finding the Fourth Proportional to 396,606.94, 547,324.18 and 215,318.92
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Solution
The fourth proportional to 396,606.94, 547,324.18 and 215,318.92 is: 297,143.69
Step by Step Solution
- Step 1: Write the proportion equation
396,606.94 : 547,324.18 = 215,318.92 : x - Step 2: Convert to fraction form
396,606.94/547,324.18 = 215,318.92/x - Step 3: Cross multiply
396,606.94x = 547,324.18 × 215,318.92 - Step 4: Simplify right side
396,606.94x = 117,849,251,327.49 - Step 5: Solve for x
x = 117,849,251,327.49/396,606.94 - Step 6: Final answer
x = 297,143.69
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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.