Finding the Fourth Proportional to 201,570.44, 278,137.86 and 120,980.84
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Solution
The fourth proportional to 201,570.44, 278,137.86 and 120,980.84 is: 166,935.95
Step by Step Solution
- Step 1: Write the proportion equation
201,570.44 : 278,137.86 = 120,980.84 : x - Step 2: Convert to fraction form
201,570.44/278,137.86 = 120,980.84/x - Step 3: Cross multiply
201,570.44x = 278,137.86 × 120,980.84 - Step 4: Simplify right side
201,570.44x = 33,649,351,938.60 - Step 5: Solve for x
x = 33,649,351,938.60/201,570.44 - Step 6: Final answer
x = 166,935.95
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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.