Finding the Fourth Proportional to 381,120.36, 525,942.50 and 209,034.81
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Solution
The fourth proportional to 381,120.36, 525,942.50 and 209,034.81 is: 288,466.07
Step by Step Solution
- Step 1: Write the proportion equation
381,120.36 : 525,942.50 = 209,034.81 : x - Step 2: Convert to fraction form
381,120.36/525,942.50 = 209,034.81/x - Step 3: Cross multiply
381,120.36x = 525,942.50 × 209,034.81 - Step 4: Simplify right side
381,120.36x = 109,940,289,513.25 - Step 5: Solve for x
x = 109,940,289,513.25/381,120.36 - Step 6: Final answer
x = 288,466.07
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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.