Finding the Fourth Proportional to 242,469.78, 363,704.70 and 73,990.99
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Solution
The fourth proportional to 242,469.78, 363,704.70 and 73,990.99 is: 110,986.49
Step by Step Solution
- Step 1: Write the proportion equation
242,469.78 : 363,704.70 = 73,990.99 : x - Step 2: Convert to fraction form
242,469.78/363,704.70 = 73,990.99/x - Step 3: Cross multiply
242,469.78x = 363,704.70 × 73,990.99 - Step 4: Simplify right side
242,469.78x = 26,910,870,820.65 - Step 5: Solve for x
x = 26,910,870,820.65/242,469.78 - Step 6: Final answer
x = 110,986.49
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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.