Finding the Fourth Proportional to 286,089.36, 394,795.80 and 158,761.68
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Solution
The fourth proportional to 286,089.36, 394,795.80 and 158,761.68 is: 219,086.95
Step by Step Solution
- Step 1: Write the proportion equation
286,089.36 : 394,795.80 = 158,761.68 : x - Step 2: Convert to fraction form
286,089.36/394,795.80 = 158,761.68/x - Step 3: Cross multiply
286,089.36x = 394,795.80 × 158,761.68 - Step 4: Simplify right side
286,089.36x = 62,678,444,464.94 - Step 5: Solve for x
x = 62,678,444,464.94/286,089.36 - Step 6: Final answer
x = 219,086.95
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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.