Finding the Fourth Proportional to 275,113.63, 412,642.78 and 75,454.09
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Solution
The fourth proportional to 275,113.63, 412,642.78 and 75,454.09 is: 113,173.55
Step by Step Solution
- Step 1: Write the proportion equation
275,113.63 : 412,642.78 = 75,454.09 : x - Step 2: Convert to fraction form
275,113.63/412,642.78 = 75,454.09/x - Step 3: Cross multiply
275,113.63x = 412,642.78 × 75,454.09 - Step 4: Simplify right side
275,113.63x = 31,135,585,459.97 - Step 5: Solve for x
x = 31,135,585,459.97/275,113.63 - Step 6: Final answer
x = 113,173.55
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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.