Finding the Fourth Proportional to 412,590.74, 618,891.57 and 132,107.99
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Solution
The fourth proportional to 412,590.74, 618,891.57 and 132,107.99 is: 198,163.73
Step by Step Solution
- Step 1: Write the proportion equation
412,590.74 : 618,891.57 = 132,107.99 : x - Step 2: Convert to fraction form
412,590.74/618,891.57 = 132,107.99/x - Step 3: Cross multiply
412,590.74x = 618,891.57 × 132,107.99 - Step 4: Simplify right side
412,590.74x = 81,760,518,246.19 - Step 5: Solve for x
x = 81,760,518,246.19/412,590.74 - Step 6: Final answer
x = 198,163.73
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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.