Finding the Fourth Proportional to 445,021.16, 667,550.16 and 129,478.07
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Solution
The fourth proportional to 445,021.16, 667,550.16 and 129,478.07 is: 194,222.46
Step by Step Solution
- Step 1: Write the proportion equation
445,021.16 : 667,550.16 = 129,478.07 : x - Step 2: Convert to fraction form
445,021.16/667,550.16 = 129,478.07/x - Step 3: Cross multiply
445,021.16x = 667,550.16 × 129,478.07 - Step 4: Simplify right side
445,021.16x = 86,433,103,007.24 - Step 5: Solve for x
x = 86,433,103,007.24/445,021.16 - Step 6: Final answer
x = 194,222.46
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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.