Finding the Fourth Proportional to 331,504.20, 497,450.70 and 121,163.40
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Solution
The fourth proportional to 331,504.20, 497,450.70 and 121,163.40 is: 181,816.15
Step by Step Solution
- Step 1: Write the proportion equation
331,504.20 : 497,450.70 = 121,163.40 : x - Step 2: Convert to fraction form
331,504.20/497,450.70 = 121,163.40/x - Step 3: Cross multiply
331,504.20x = 497,450.70 × 121,163.40 - Step 4: Simplify right side
331,504.20x = 60,272,818,144.38 - Step 5: Solve for x
x = 60,272,818,144.38/331,504.20 - Step 6: Final answer
x = 181,816.15
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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.