Finding the Fourth Proportional to 201,520.44, 278,068.86 and 120,930.84
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Solution
The fourth proportional to 201,520.44, 278,068.86 and 120,930.84 is: 166,866.95
Step by Step Solution
- Step 1: Write the proportion equation
201,520.44 : 278,068.86 = 120,930.84 : x - Step 2: Convert to fraction form
201,520.44/278,068.86 = 120,930.84/x - Step 3: Cross multiply
201,520.44x = 278,068.86 × 120,930.84 - Step 4: Simplify right side
201,520.44x = 33,627,100,817.64 - Step 5: Solve for x
x = 33,627,100,817.64/201,520.44 - Step 6: Final answer
x = 166,866.95
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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.