Finding the Fourth Proportional to 220,991.63, 304,968.44 and 120,389.63
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Solution
The fourth proportional to 220,991.63, 304,968.44 and 120,389.63 is: 166,137.68
Step by Step Solution
- Step 1: Write the proportion equation
220,991.63 : 304,968.44 = 120,389.63 : x - Step 2: Convert to fraction form
220,991.63/304,968.44 = 120,389.63/x - Step 3: Cross multiply
220,991.63x = 304,968.44 × 120,389.63 - Step 4: Simplify right side
220,991.63x = 36,715,036,429.41 - Step 5: Solve for x
x = 36,715,036,429.41/220,991.63 - Step 6: Final answer
x = 166,137.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.