Finding the Fourth Proportional to 208,163.20, 312,244.80 and 205,052.80
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Solution
The fourth proportional to 208,163.20, 312,244.80 and 205,052.80 is: 307,579.20
Step by Step Solution
- Step 1: Write the proportion equation
208,163.20 : 312,244.80 = 205,052.80 : x - Step 2: Convert to fraction form
208,163.20/312,244.80 = 205,052.80/x - Step 3: Cross multiply
208,163.20x = 312,244.80 × 205,052.80 - Step 4: Simplify right side
208,163.20x = 64,026,670,525.44 - Step 5: Solve for x
x = 64,026,670,525.44/208,163.20 - Step 6: Final answer
x = 307,579.20
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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.