Finding the Fourth Proportional to 331,153.84, 496,804.84 and 120,791.78
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Solution
The fourth proportional to 331,153.84, 496,804.84 and 120,791.78 is: 181,214.69
Step by Step Solution
- Step 1: Write the proportion equation
331,153.84 : 496,804.84 = 120,791.78 : x - Step 2: Convert to fraction form
331,153.84/496,804.84 = 120,791.78/x - Step 3: Cross multiply
331,153.84x = 496,804.84 × 120,791.78 - Step 4: Simplify right side
331,153.84x = 60,009,940,936.22 - Step 5: Solve for x
x = 60,009,940,936.22/331,153.84 - Step 6: Final answer
x = 181,214.69
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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.