Finding the Fourth Proportional to 363,639.91, 545,085.60 and 161,331.29
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Solution
The fourth proportional to 363,639.91, 545,085.60 and 161,331.29 is: 241,830.89
Step by Step Solution
- Step 1: Write the proportion equation
363,639.91 : 545,085.60 = 161,331.29 : x - Step 2: Convert to fraction form
363,639.91/545,085.60 = 161,331.29/x - Step 3: Cross multiply
363,639.91x = 545,085.60 × 161,331.29 - Step 4: Simplify right side
363,639.91x = 87,939,364,976.13 - Step 5: Solve for x
x = 87,939,364,976.13/363,639.91 - Step 6: Final answer
x = 241,830.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.