Finding the Fourth Proportional to 214,302.57, 321,520.77 and 129,006.81
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Solution
The fourth proportional to 214,302.57, 321,520.77 and 129,006.81 is: 193,550.50
Step by Step Solution
- Step 1: Write the proportion equation
214,302.57 : 321,520.77 = 129,006.81 : x - Step 2: Convert to fraction form
214,302.57/321,520.77 = 129,006.81/x - Step 3: Cross multiply
214,302.57x = 321,520.77 × 129,006.81 - Step 4: Simplify right side
214,302.57x = 41,478,368,886.44 - Step 5: Solve for x
x = 41,478,368,886.44/214,302.57 - Step 6: Final answer
x = 193,550.50
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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.