Finding the Fourth Proportional to 255,028.78, 382,379.14 and 121,906.09
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Solution
The fourth proportional to 255,028.78, 382,379.14 and 121,906.09 is: 182,780.73
Step by Step Solution
- Step 1: Write the proportion equation
255,028.78 : 382,379.14 = 121,906.09 : x - Step 2: Convert to fraction form
255,028.78/382,379.14 = 121,906.09/x - Step 3: Cross multiply
255,028.78x = 382,379.14 × 121,906.09 - Step 4: Simplify right side
255,028.78x = 46,614,345,854.96 - Step 5: Solve for x
x = 46,614,345,854.96/255,028.78 - Step 6: Final answer
x = 182,780.73
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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.