Finding the Fourth Proportional to 379,044.68, 523,081.32 and 209,279.84
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Solution
The fourth proportional to 379,044.68, 523,081.32 and 209,279.84 is: 288,805.99
Step by Step Solution
- Step 1: Write the proportion equation
379,044.68 : 523,081.32 = 209,279.84 : x - Step 2: Convert to fraction form
379,044.68/523,081.32 = 209,279.84/x - Step 3: Cross multiply
379,044.68x = 523,081.32 × 209,279.84 - Step 4: Simplify right side
379,044.68x = 109,470,374,956.59 - Step 5: Solve for x
x = 109,470,374,956.59/379,044.68 - Step 6: Final answer
x = 288,805.99
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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.