Finding the Fourth Proportional to 327,640.21, 491,493.84 and 125,406.21
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Solution
The fourth proportional to 327,640.21, 491,493.84 and 125,406.21 is: 188,122.15
Step by Step Solution
- Step 1: Write the proportion equation
327,640.21 : 491,493.84 = 125,406.21 : x - Step 2: Convert to fraction form
327,640.21/491,493.84 = 125,406.21/x - Step 3: Cross multiply
327,640.21x = 491,493.84 × 125,406.21 - Step 4: Simplify right side
327,640.21x = 61,636,378,327.25 - Step 5: Solve for x
x = 61,636,378,327.25/327,640.21 - Step 6: Final answer
x = 188,122.15
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1.5x scale
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.