Finding the Fourth Proportional to 352,519.49, 486,007.11 and 280,163.99
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Solution
The fourth proportional to 352,519.49, 486,007.11 and 280,163.99 is: 386,252.94
Step by Step Solution
- Step 1: Write the proportion equation
352,519.49 : 486,007.11 = 280,163.99 : x - Step 2: Convert to fraction form
352,519.49/486,007.11 = 280,163.99/x - Step 3: Cross multiply
352,519.49x = 486,007.11 × 280,163.99 - Step 4: Simplify right side
352,519.49x = 136,161,688,675.93 - Step 5: Solve for x
x = 136,161,688,675.93/352,519.49 - Step 6: Final answer
x = 386,252.94
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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.