Finding the Fourth Proportional to 217,170.14, 299,697.75 and 121,674.78
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Solution
The fourth proportional to 217,170.14, 299,697.75 and 121,674.78 is: 167,912.86
Step by Step Solution
- Step 1: Write the proportion equation
217,170.14 : 299,697.75 = 121,674.78 : x - Step 2: Convert to fraction form
217,170.14/299,697.75 = 121,674.78/x - Step 3: Cross multiply
217,170.14x = 299,697.75 × 121,674.78 - Step 4: Simplify right side
217,170.14x = 36,465,657,797.75 - Step 5: Solve for x
x = 36,465,657,797.75/217,170.14 - Step 6: Final answer
x = 167,912.86
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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.