Finding the Fourth Proportional to 303,969.20, 455,297.70 and 251,481.20
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Solution
The fourth proportional to 303,969.20, 455,297.70 and 251,481.20 is: 376,678.99
Step by Step Solution
- Step 1: Write the proportion equation
303,969.20 : 455,297.70 = 251,481.20 : x - Step 2: Convert to fraction form
303,969.20/455,297.70 = 251,481.20/x - Step 3: Cross multiply
303,969.20x = 455,297.70 × 251,481.20 - Step 4: Simplify right side
303,969.20x = 114,498,811,953.24 - Step 5: Solve for x
x = 114,498,811,953.24/303,969.20 - Step 6: Final answer
x = 376,678.99
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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.