Finding the Fourth Proportional to 378,887.82, 522,857.20 and 206,800.08
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Solution
The fourth proportional to 378,887.82, 522,857.20 and 206,800.08 is: 285,379.75
Step by Step Solution
- Step 1: Write the proportion equation
378,887.82 : 522,857.20 = 206,800.08 : x - Step 2: Convert to fraction form
378,887.82/522,857.20 = 206,800.08/x - Step 3: Cross multiply
378,887.82x = 522,857.20 × 206,800.08 - Step 4: Simplify right side
378,887.82x = 108,126,910,788.58 - Step 5: Solve for x
x = 108,126,910,788.58/378,887.82 - Step 6: Final answer
x = 285,379.75
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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.