Finding the Fourth Proportional to 378,790.68, 522,723.53 and 206,712.05
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Solution
The fourth proportional to 378,790.68, 522,723.53 and 206,712.05 is: 285,258.48
Step by Step Solution
- Step 1: Write the proportion equation
378,790.68 : 522,723.53 = 206,712.05 : x - Step 2: Convert to fraction form
378,790.68/522,723.53 = 206,712.05/x - Step 3: Cross multiply
378,790.68x = 522,723.53 × 206,712.05 - Step 4: Simplify right side
378,790.68x = 108,053,252,150.26 - Step 5: Solve for x
x = 108,053,252,150.26/378,790.68 - Step 6: Final answer
x = 285,258.48
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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.