Finding the Fourth Proportional to 386,538.36, 533,423.56 and 214,450.92
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Solution
The fourth proportional to 386,538.36, 533,423.56 and 214,450.92 is: 295,942.62
Step by Step Solution
- Step 1: Write the proportion equation
386,538.36 : 533,423.56 = 214,450.92 : x - Step 2: Convert to fraction form
386,538.36/533,423.56 = 214,450.92/x - Step 3: Cross multiply
386,538.36x = 533,423.56 × 214,450.92 - Step 4: Simplify right side
386,538.36x = 114,393,173,191.68 - Step 5: Solve for x
x = 114,393,173,191.68/386,538.36 - Step 6: Final answer
x = 295,942.62
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1.5x scale
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.