Finding the Fourth Proportional to 252,115.44, 347,919.48 and 138,937.92
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Solution
The fourth proportional to 252,115.44, 347,919.48 and 138,937.92 is: 191,734.42
Step by Step Solution
- Step 1: Write the proportion equation
252,115.44 : 347,919.48 = 138,937.92 : x - Step 2: Convert to fraction form
252,115.44/347,919.48 = 138,937.92/x - Step 3: Cross multiply
252,115.44x = 347,919.48 × 138,937.92 - Step 4: Simplify right side
252,115.44x = 48,339,208,878.68 - Step 5: Solve for x
x = 48,339,208,878.68/252,115.44 - Step 6: Final answer
x = 191,734.42
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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.