Finding the Fourth Proportional to 326,378.20, 450,400.70 and 183,137.90
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Solution
The fourth proportional to 326,378.20, 450,400.70 and 183,137.90 is: 252,729.62
Step by Step Solution
- Step 1: Write the proportion equation
326,378.20 : 450,400.70 = 183,137.90 : x - Step 2: Convert to fraction form
326,378.20/450,400.70 = 183,137.90/x - Step 3: Cross multiply
326,378.20x = 450,400.70 × 183,137.90 - Step 4: Simplify right side
326,378.20x = 82,485,438,356.53 - Step 5: Solve for x
x = 82,485,438,356.53/326,378.20 - Step 6: Final answer
x = 252,729.62
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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.