Finding the Fourth Proportional to 220,108.80, 330,163.20 and 205,237.20
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Solution
The fourth proportional to 220,108.80, 330,163.20 and 205,237.20 is: 307,855.80
Step by Step Solution
- Step 1: Write the proportion equation
220,108.80 : 330,163.20 = 205,237.20 : x - Step 2: Convert to fraction form
220,108.80/330,163.20 = 205,237.20/x - Step 3: Cross multiply
220,108.80x = 330,163.20 × 205,237.20 - Step 4: Simplify right side
220,108.80x = 67,761,770,711.04 - Step 5: Solve for x
x = 67,761,770,711.04/220,108.80 - Step 6: Final answer
x = 307,855.80
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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.