Finding the Fourth Proportional to 262,631.23, 394,069.87 and 129,438.88
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Solution
The fourth proportional to 262,631.23, 394,069.87 and 129,438.88 is: 194,218.95
Step by Step Solution
- Step 1: Write the proportion equation
262,631.23 : 394,069.87 = 129,438.88 : x - Step 2: Convert to fraction form
262,631.23/394,069.87 = 129,438.88/x - Step 3: Cross multiply
262,631.23x = 394,069.87 × 129,438.88 - Step 4: Simplify right side
262,631.23x = 51,007,962,614.55 - Step 5: Solve for x
x = 51,007,962,614.55/262,631.23 - Step 6: Final answer
x = 194,218.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.