Finding the Fourth Proportional to 383,873.99, 529,915.97 and 247,974.19
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Solution
The fourth proportional to 383,873.99, 529,915.97 and 247,974.19 is: 342,314.11
Step by Step Solution
- Step 1: Write the proportion equation
383,873.99 : 529,915.97 = 247,974.19 : x - Step 2: Convert to fraction form
383,873.99/529,915.97 = 247,974.19/x - Step 3: Cross multiply
383,873.99x = 529,915.97 × 247,974.19 - Step 4: Simplify right side
383,873.99x = 131,405,485,704.74 - Step 5: Solve for x
x = 131,405,485,704.74/383,873.99 - Step 6: Final answer
x = 342,314.11
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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.