Finding the Fourth Proportional to 286,114.56, 394,832.64 and 158,791.68
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Solution
The fourth proportional to 286,114.56, 394,832.64 and 158,791.68 is: 219,129.49
Step by Step Solution
- Step 1: Write the proportion equation
286,114.56 : 394,832.64 = 158,791.68 : x - Step 2: Convert to fraction form
286,114.56/394,832.64 = 158,791.68/x - Step 3: Cross multiply
286,114.56x = 394,832.64 × 158,791.68 - Step 4: Simplify right side
286,114.56x = 62,696,138,224.44 - Step 5: Solve for x
x = 62,696,138,224.44/286,114.56 - Step 6: Final answer
x = 219,129.49
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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.