Finding the Fourth Proportional to 378,815.44, 522,768.36 and 206,734.76
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Solution
The fourth proportional to 378,815.44, 522,768.36 and 206,734.76 is: 285,295.63
Step by Step Solution
- Step 1: Write the proportion equation
378,815.44 : 522,768.36 = 206,734.76 : x - Step 2: Convert to fraction form
378,815.44/522,768.36 = 206,734.76/x - Step 3: Cross multiply
378,815.44x = 522,768.36 × 206,734.76 - Step 4: Simplify right side
378,815.44x = 108,074,391,440.19 - Step 5: Solve for x
x = 108,074,391,440.19/378,815.44 - Step 6: Final answer
x = 285,295.63
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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.