Finding the Fourth Proportional to 155,678.44, 214,761.67 and 149,642.92
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Solution
The fourth proportional to 155,678.44, 214,761.67 and 149,642.92 is: 206,435.54
Step by Step Solution
- Step 1: Write the proportion equation
155,678.44 : 214,761.67 = 149,642.92 : x - Step 2: Convert to fraction form
155,678.44/214,761.67 = 149,642.92/x - Step 3: Cross multiply
155,678.44x = 214,761.67 × 149,642.92 - Step 4: Simplify right side
155,678.44x = 32,137,561,580.85 - Step 5: Solve for x
x = 32,137,561,580.85/155,678.44 - Step 6: Final answer
x = 206,435.54
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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.