Finding the Fourth Proportional to 396,449.59, 547,104.52 and 215,163.08
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Solution
The fourth proportional to 396,449.59, 547,104.52 and 215,163.08 is: 296,927.27
Step by Step Solution
- Step 1: Write the proportion equation
396,449.59 : 547,104.52 = 215,163.08 : x - Step 2: Convert to fraction form
396,449.59/547,104.52 = 215,163.08/x - Step 3: Cross multiply
396,449.59x = 547,104.52 × 215,163.08 - Step 4: Simplify right side
396,449.59x = 117,716,693,751.10 - Step 5: Solve for x
x = 117,716,693,751.10/396,449.59 - Step 6: Final answer
x = 296,927.27
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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.