Finding the Fourth Proportional to 217,227.15, 299,757.11 and 121,715.39
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Solution
The fourth proportional to 217,227.15, 299,757.11 and 121,715.39 is: 167,958.07
Step by Step Solution
- Step 1: Write the proportion equation
217,227.15 : 299,757.11 = 121,715.39 : x - Step 2: Convert to fraction form
217,227.15/299,757.11 = 121,715.39/x - Step 3: Cross multiply
217,227.15x = 299,757.11 × 121,715.39 - Step 4: Simplify right side
217,227.15x = 36,485,053,689.74 - Step 5: Solve for x
x = 36,485,053,689.74/217,227.15 - Step 6: Final answer
x = 167,958.07
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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.