Finding the Fourth Proportional to 396,917.20, 547,733.10 and 227,147.68
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Solution
The fourth proportional to 396,917.20, 547,733.10 and 227,147.68 is: 313,456.57
Step by Step Solution
- Step 1: Write the proportion equation
396,917.20 : 547,733.10 = 227,147.68 : x - Step 2: Convert to fraction form
396,917.20/547,733.10 = 227,147.68/x - Step 3: Cross multiply
396,917.20x = 547,733.10 × 227,147.68 - Step 4: Simplify right side
396,917.20x = 124,416,302,924.21 - Step 5: Solve for x
x = 124,416,302,924.21/396,917.20 - Step 6: Final answer
x = 313,456.57
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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.