Finding the Fourth Proportional to 434,515.20, 651,772.80 and 247,891.20
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Solution
The fourth proportional to 434,515.20, 651,772.80 and 247,891.20 is: 371,836.80
Step by Step Solution
- Step 1: Write the proportion equation
434,515.20 : 651,772.80 = 247,891.20 : x - Step 2: Convert to fraction form
434,515.20/651,772.80 = 247,891.20/x - Step 3: Cross multiply
434,515.20x = 651,772.80 × 247,891.20 - Step 4: Simplify right side
434,515.20x = 161,568,741,519.36 - Step 5: Solve for x
x = 161,568,741,519.36/434,515.20 - Step 6: Final answer
x = 371,836.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.