Finding the Fourth Proportional to 326,891.11, 490,415.71 and 113,628.23
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Solution
The fourth proportional to 326,891.11, 490,415.71 and 113,628.23 is: 170,469.82
Step by Step Solution
- Step 1: Write the proportion equation
326,891.11 : 490,415.71 = 113,628.23 : x - Step 2: Convert to fraction form
326,891.11/490,415.71 = 113,628.23/x - Step 3: Cross multiply
326,891.11x = 490,415.71 × 113,628.23 - Step 4: Simplify right side
326,891.11x = 55,725,069,091.49 - Step 5: Solve for x
x = 55,725,069,091.49/326,891.11 - Step 6: Final answer
x = 170,469.82
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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.