Finding the Fourth Proportional to 251,879.68, 347,489.64 and 149,884.72
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Solution
The fourth proportional to 251,879.68, 347,489.64 and 149,884.72 is: 206,778.84
Step by Step Solution
- Step 1: Write the proportion equation
251,879.68 : 347,489.64 = 149,884.72 : x - Step 2: Convert to fraction form
251,879.68/347,489.64 = 149,884.72/x - Step 3: Cross multiply
251,879.68x = 347,489.64 × 149,884.72 - Step 4: Simplify right side
251,879.68x = 52,083,387,394.30 - Step 5: Solve for x
x = 52,083,387,394.30/251,879.68 - Step 6: Final answer
x = 206,778.84
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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.