Finding the Fourth Proportional to 286,083.36, 394,787.52 and 158,755.68
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Solution
The fourth proportional to 286,083.36, 394,787.52 and 158,755.68 is: 219,078.67
Step by Step Solution
- Step 1: Write the proportion equation
286,083.36 : 394,787.52 = 158,755.68 : x - Step 2: Convert to fraction form
286,083.36/394,787.52 = 158,755.68/x - Step 3: Cross multiply
286,083.36x = 394,787.52 × 158,755.68 - Step 4: Simplify right side
286,083.36x = 62,674,761,193.11 - Step 5: Solve for x
x = 62,674,761,193.11/286,083.36 - Step 6: Final answer
x = 219,078.67
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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.