Finding the Fourth Proportional to 303,941.75, 455,912.63 and 82,325.75
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Solution
The fourth proportional to 303,941.75, 455,912.63 and 82,325.75 is: 123,488.63
Step by Step Solution
- Step 1: Write the proportion equation
303,941.75 : 455,912.63 = 82,325.75 : x - Step 2: Convert to fraction form
303,941.75/455,912.63 = 82,325.75/x - Step 3: Cross multiply
303,941.75x = 455,912.63 × 82,325.75 - Step 4: Simplify right side
303,941.75x = 37,533,349,199.22 - Step 5: Solve for x
x = 37,533,349,199.22/303,941.75 - Step 6: Final answer
x = 123,488.63
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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.