Finding the Fourth Proportional to 379,386.38, 523,662.30 and 250,418.99
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Solution
The fourth proportional to 379,386.38, 523,662.30 and 250,418.99 is: 345,650.22
Step by Step Solution
- Step 1: Write the proportion equation
379,386.38 : 523,662.30 = 250,418.99 : x - Step 2: Convert to fraction form
379,386.38/523,662.30 = 250,418.99/x - Step 3: Cross multiply
379,386.38x = 523,662.30 × 250,418.99 - Step 4: Simplify right side
379,386.38x = 131,134,985,576.23 - Step 5: Solve for x
x = 131,134,985,576.23/379,386.38 - Step 6: Final answer
x = 345,650.22
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1.5x scale
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.