Finding the Fourth Proportional to 445,007.20, 667,583.60 and 145,400.80
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Solution
The fourth proportional to 445,007.20, 667,583.60 and 145,400.80 is: 218,124.99
Step by Step Solution
- Step 1: Write the proportion equation
445,007.20 : 667,583.60 = 145,400.80 : x - Step 2: Convert to fraction form
445,007.20/667,583.60 = 145,400.80/x - Step 3: Cross multiply
445,007.20x = 667,583.60 × 145,400.80 - Step 4: Simplify right side
445,007.20x = 97,067,189,506.88 - Step 5: Solve for x
x = 97,067,189,506.88/445,007.20 - Step 6: Final answer
x = 218,124.99
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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.