Finding the Fourth Proportional to 280,701.12, 422,703.84 and 202,366.56
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Solution
The fourth proportional to 280,701.12, 422,703.84 and 202,366.56 is: 304,740.94
Step by Step Solution
- Step 1: Write the proportion equation
280,701.12 : 422,703.84 = 202,366.56 : x - Step 2: Convert to fraction form
280,701.12/422,703.84 = 202,366.56/x - Step 3: Cross multiply
280,701.12x = 422,703.84 × 202,366.56 - Step 4: Simplify right side
280,701.12x = 85,541,121,999.59 - Step 5: Solve for x
x = 85,541,121,999.59/280,701.12 - Step 6: Final answer
x = 304,740.94
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.