Finding the Fourth Proportional to 221,857.92, 306,163.20 and 121,255.68
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Solution
The fourth proportional to 221,857.92, 306,163.20 and 121,255.68 is: 167,332.44
Step by Step Solution
- Step 1: Write the proportion equation
221,857.92 : 306,163.20 = 121,255.68 : x - Step 2: Convert to fraction form
221,857.92/306,163.20 = 121,255.68/x - Step 3: Cross multiply
221,857.92x = 306,163.20 × 121,255.68 - Step 4: Simplify right side
221,857.92x = 37,124,027,006.98 - Step 5: Solve for x
x = 37,124,027,006.98/221,857.92 - Step 6: Final answer
x = 167,332.44
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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.