Finding the Fourth Proportional to 186,753.36, 280,129.86 and 68,433.96
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Solution
The fourth proportional to 186,753.36, 280,129.86 and 68,433.96 is: 102,650.87
Step by Step Solution
- Step 1: Write the proportion equation
186,753.36 : 280,129.86 = 68,433.96 : x - Step 2: Convert to fraction form
186,753.36/280,129.86 = 68,433.96/x - Step 3: Cross multiply
186,753.36x = 280,129.86 × 68,433.96 - Step 4: Simplify right side
186,753.36x = 19,170,395,634.05 - Step 5: Solve for x
x = 19,170,395,634.05/186,753.36 - Step 6: Final answer
x = 102,650.87
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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.