Finding the Fourth Proportional to 421,953.75, 582,273.81 and 230,930.19
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Solution
The fourth proportional to 421,953.75, 582,273.81 and 230,930.19 is: 318,671.42
Step by Step Solution
- Step 1: Write the proportion equation
421,953.75 : 582,273.81 = 230,930.19 : x - Step 2: Convert to fraction form
421,953.75/582,273.81 = 230,930.19/x - Step 3: Cross multiply
421,953.75x = 582,273.81 × 230,930.19 - Step 4: Simplify right side
421,953.75x = 134,464,601,575.32 - Step 5: Solve for x
x = 134,464,601,575.32/421,953.75 - Step 6: Final answer
x = 318,671.42
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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.