Finding the Fourth Proportional to 303,163.80, 454,745.70 and 103,490.70
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Solution
The fourth proportional to 303,163.80, 454,745.70 and 103,490.70 is: 155,236.05
Step by Step Solution
- Step 1: Write the proportion equation
303,163.80 : 454,745.70 = 103,490.70 : x - Step 2: Convert to fraction form
303,163.80/454,745.70 = 103,490.70/x - Step 3: Cross multiply
303,163.80x = 454,745.70 × 103,490.70 - Step 4: Simplify right side
303,163.80x = 47,061,950,814.99 - Step 5: Solve for x
x = 47,061,950,814.99/303,163.80 - Step 6: Final answer
x = 155,236.05
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1.5x scale
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.