Finding the Fourth Proportional to 252,121.78, 347,928.08 and 138,944.53
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Solution
The fourth proportional to 252,121.78, 347,928.08 and 138,944.53 is: 191,743.46
Step by Step Solution
- Step 1: Write the proportion equation
252,121.78 : 347,928.08 = 138,944.53 : x - Step 2: Convert to fraction form
252,121.78/347,928.08 = 138,944.53/x - Step 3: Cross multiply
252,121.78x = 347,928.08 × 138,944.53 - Step 4: Simplify right side
252,121.78x = 48,342,703,549.40 - Step 5: Solve for x
x = 48,342,703,549.40/252,121.78 - Step 6: Final answer
x = 191,743.46
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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.