Finding the Fourth Proportional to 209,163.15, 288,639.11 and 118,548.38
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Solution
The fourth proportional to 209,163.15, 288,639.11 and 118,548.38 is: 163,593.33
Step by Step Solution
- Step 1: Write the proportion equation
209,163.15 : 288,639.11 = 118,548.38 : x - Step 2: Convert to fraction form
209,163.15/288,639.11 = 118,548.38/x - Step 3: Cross multiply
209,163.15x = 288,639.11 × 118,548.38 - Step 4: Simplify right side
209,163.15x = 34,217,696,859.20 - Step 5: Solve for x
x = 34,217,696,859.20/209,163.15 - Step 6: Final answer
x = 163,593.33
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1.5x scale
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.