Finding the Fourth Proportional to 273,107.76, 409,661.66 and 86,119.26
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Solution
The fourth proportional to 273,107.76, 409,661.66 and 86,119.26 is: 129,178.89
Step by Step Solution
- Step 1: Write the proportion equation
273,107.76 : 409,661.66 = 86,119.26 : x - Step 2: Convert to fraction form
273,107.76/409,661.66 = 86,119.26/x - Step 3: Cross multiply
273,107.76x = 409,661.66 × 86,119.26 - Step 4: Simplify right side
273,107.76x = 35,279,758,578.98 - Step 5: Solve for x
x = 35,279,758,578.98/273,107.76 - Step 6: Final answer
x = 129,178.89
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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.