Finding the Fourth Proportional to 321,584.85, 443,423.65 and 205,142.99
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Solution
The fourth proportional to 321,584.85, 443,423.65 and 205,142.99 is: 282,865.48
Step by Step Solution
- Step 1: Write the proportion equation
321,584.85 : 443,423.65 = 205,142.99 : x - Step 2: Convert to fraction form
321,584.85/443,423.65 = 205,142.99/x - Step 3: Cross multiply
321,584.85x = 443,423.65 × 205,142.99 - Step 4: Simplify right side
321,584.85x = 90,965,253,737.49 - Step 5: Solve for x
x = 90,965,253,737.49/321,584.85 - Step 6: Final answer
x = 282,865.48
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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.