Finding the Fourth Proportional to 378,581.39, 522,443.95 and 206,503.05
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Solution
The fourth proportional to 378,581.39, 522,443.95 and 206,503.05 is: 284,975.09
Step by Step Solution
- Step 1: Write the proportion equation
378,581.39 : 522,443.95 = 206,503.05 : x - Step 2: Convert to fraction form
378,581.39/522,443.95 = 206,503.05/x - Step 3: Cross multiply
378,581.39x = 522,443.95 × 206,503.05 - Step 4: Simplify right side
378,581.39x = 107,886,265,484.31 - Step 5: Solve for x
x = 107,886,265,484.31/378,581.39 - Step 6: Final answer
x = 284,975.09
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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.