Finding the Fourth Proportional to 201,187.20, 301,780.80 and 68,071.80
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Solution
The fourth proportional to 201,187.20, 301,780.80 and 68,071.80 is: 102,107.70
Step by Step Solution
- Step 1: Write the proportion equation
201,187.20 : 301,780.80 = 68,071.80 : x - Step 2: Convert to fraction form
201,187.20/301,780.80 = 68,071.80/x - Step 3: Cross multiply
201,187.20x = 301,780.80 × 68,071.80 - Step 4: Simplify right side
201,187.20x = 20,542,762,261.44 - Step 5: Solve for x
x = 20,542,762,261.44/201,187.20 - Step 6: Final answer
x = 102,107.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.