Finding the Fourth Proportional to 295,639.11, 407,981.70 and 159,673.05
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Solution
The fourth proportional to 295,639.11, 407,981.70 and 159,673.05 is: 220,348.66
Step by Step Solution
- Step 1: Write the proportion equation
295,639.11 : 407,981.70 = 159,673.05 : x - Step 2: Convert to fraction form
295,639.11/407,981.70 = 159,673.05/x - Step 3: Cross multiply
295,639.11x = 407,981.70 × 159,673.05 - Step 4: Simplify right side
295,639.11x = 65,143,682,383.19 - Step 5: Solve for x
x = 65,143,682,383.19/295,639.11 - Step 6: Final answer
x = 220,348.66
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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.