Finding the Fourth Proportional to 218,145.16, 327,157.26 and 138,131.08
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Solution
The fourth proportional to 218,145.16, 327,157.26 and 138,131.08 is: 207,158.32
Step by Step Solution
- Step 1: Write the proportion equation
218,145.16 : 327,157.26 = 138,131.08 : x - Step 2: Convert to fraction form
218,145.16/327,157.26 = 138,131.08/x - Step 3: Cross multiply
218,145.16x = 327,157.26 × 138,131.08 - Step 4: Simplify right side
218,145.16x = 45,190,585,653.64 - Step 5: Solve for x
x = 45,190,585,653.64/218,145.16 - Step 6: Final answer
x = 207,158.32
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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.