Finding the Fourth Proportional to 641,378.49, 961,797.09 and 192,163.23
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Solution
The fourth proportional to 641,378.49, 961,797.09 and 192,163.23 is: 288,163.76
Step by Step Solution
- Step 1: Write the proportion equation
641,378.49 : 961,797.09 = 192,163.23 : x - Step 2: Convert to fraction form
641,378.49/961,797.09 = 192,163.23/x - Step 3: Cross multiply
641,378.49x = 961,797.09 × 192,163.23 - Step 4: Simplify right side
641,378.49x = 184,822,035,419.00 - Step 5: Solve for x
x = 184,822,035,419.00/641,378.49 - Step 6: Final answer
x = 288,163.76
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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.