Finding the Fourth Proportional to 180,745.40, 270,923.70 and 68,382.20
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Solution
The fourth proportional to 180,745.40, 270,923.70 and 68,382.20 is: 102,499.75
Step by Step Solution
- Step 1: Write the proportion equation
180,745.40 : 270,923.70 = 68,382.20 : x - Step 2: Convert to fraction form
180,745.40/270,923.70 = 68,382.20/x - Step 3: Cross multiply
180,745.40x = 270,923.70 × 68,382.20 - Step 4: Simplify right side
180,745.40x = 18,526,358,638.14 - Step 5: Solve for x
x = 18,526,358,638.14/180,745.40 - Step 6: Final answer
x = 102,499.75
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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.