Finding the Fourth Proportional to 145,438.08, 218,198.88 and 120,361.92
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Solution
The fourth proportional to 145,438.08, 218,198.88 and 120,361.92 is: 180,577.44
Step by Step Solution
- Step 1: Write the proportion equation
145,438.08 : 218,198.88 = 120,361.92 : x - Step 2: Convert to fraction form
145,438.08/218,198.88 = 120,361.92/x - Step 3: Cross multiply
145,438.08x = 218,198.88 × 120,361.92 - Step 4: Simplify right side
145,438.08x = 26,262,836,138.65 - Step 5: Solve for x
x = 26,262,836,138.65/145,438.08 - Step 6: Final answer
x = 180,577.44
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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.