Finding the Fourth Proportional to 379,186.84, 523,274.34 and 209,423.08
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Solution
The fourth proportional to 379,186.84, 523,274.34 and 209,423.08 is: 289,001.92
Step by Step Solution
- Step 1: Write the proportion equation
379,186.84 : 523,274.34 = 209,423.08 : x - Step 2: Convert to fraction form
379,186.84/523,274.34 = 209,423.08/x - Step 3: Cross multiply
379,186.84x = 523,274.34 × 209,423.08 - Step 4: Simplify right side
379,186.84x = 109,585,723,967.77 - Step 5: Solve for x
x = 109,585,723,967.77/379,186.84 - Step 6: Final answer
x = 289,001.92
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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.