Finding the Fourth Proportional to 361,741.39, 542,689.84 and 121,879.13
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Solution
The fourth proportional to 361,741.39, 542,689.84 and 121,879.13 is: 182,844.89
Step by Step Solution
- Step 1: Write the proportion equation
361,741.39 : 542,689.84 = 121,879.13 : x - Step 2: Convert to fraction form
361,741.39/542,689.84 = 121,879.13/x - Step 3: Cross multiply
361,741.39x = 542,689.84 × 121,879.13 - Step 4: Simplify right side
361,741.39x = 66,142,562,997.94 - Step 5: Solve for x
x = 66,142,562,997.94/361,741.39 - Step 6: Final answer
x = 182,844.89
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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.