Finding the Fourth Proportional to 282,116.43, 389,327.84 and 154,791.99
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Solution
The fourth proportional to 282,116.43, 389,327.84 and 154,791.99 is: 213,616.88
Step by Step Solution
- Step 1: Write the proportion equation
282,116.43 : 389,327.84 = 154,791.99 : x - Step 2: Convert to fraction form
282,116.43/389,327.84 = 154,791.99/x - Step 3: Cross multiply
282,116.43x = 389,327.84 × 154,791.99 - Step 4: Simplify right side
282,116.43x = 60,264,830,342.04 - Step 5: Solve for x
x = 60,264,830,342.04/282,116.43 - Step 6: Final answer
x = 213,616.88
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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.