Finding the Fourth Proportional to 741,660.21, 1,112,121.92 and 236,155.20
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Solution
The fourth proportional to 741,660.21, 1,112,121.92 and 236,155.20 is: 354,115.50
Step by Step Solution
- Step 1: Write the proportion equation
741,660.21 : 1,112,121.92 = 236,155.20 : x - Step 2: Convert to fraction form
741,660.21/1,112,121.92 = 236,155.20/x - Step 3: Cross multiply
741,660.21x = 1,112,121.92 × 236,155.20 - Step 4: Simplify right side
741,660.21x = 262,633,373,261.21 - Step 5: Solve for x
x = 262,633,373,261.21/741,660.21 - Step 6: Final answer
x = 354,115.50
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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.