Finding the Fourth Proportional to 282,149.44, 389,370.99 and 154,836.88
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Solution
The fourth proportional to 282,149.44, 389,370.99 and 154,836.88 is: 213,677.51
Step by Step Solution
- Step 1: Write the proportion equation
282,149.44 : 389,370.99 = 154,836.88 : x - Step 2: Convert to fraction form
282,149.44/389,370.99 = 154,836.88/x - Step 3: Cross multiply
282,149.44x = 389,370.99 × 154,836.88 - Step 4: Simplify right side
282,149.44x = 60,288,989,254.11 - Step 5: Solve for x
x = 60,288,989,254.11/282,149.44 - Step 6: Final answer
x = 213,677.51
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1.5x scale
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.