Finding the Fourth Proportional to 303,961.07, 455,940.99 and 285,464.43
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Solution
The fourth proportional to 303,961.07, 455,940.99 and 285,464.43 is: 428,196.07
Step by Step Solution
- Step 1: Write the proportion equation
303,961.07 : 455,940.99 = 285,464.43 : x - Step 2: Convert to fraction form
303,961.07/455,940.99 = 285,464.43/x - Step 3: Cross multiply
303,961.07x = 455,940.99 × 285,464.43 - Step 4: Simplify right side
303,961.07x = 130,154,934,823.99 - Step 5: Solve for x
x = 130,154,934,823.99/303,961.07 - Step 6: Final answer
x = 428,196.07
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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.