Finding the Fourth Proportional to 318,869.26, 440,022.97 and 198,007.95
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Solution
The fourth proportional to 318,869.26, 440,022.97 and 198,007.95 is: 273,240.66
Step by Step Solution
- Step 1: Write the proportion equation
318,869.26 : 440,022.97 = 198,007.95 : x - Step 2: Convert to fraction form
318,869.26/440,022.97 = 198,007.95/x - Step 3: Cross multiply
318,869.26x = 440,022.97 × 198,007.95 - Step 4: Simplify right side
318,869.26x = 87,128,046,242.61 - Step 5: Solve for x
x = 87,128,046,242.61/318,869.26 - Step 6: Final answer
x = 273,240.66
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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.