Finding the Fourth Proportional to 266,390.40, 399,584.52 and 126,247.44
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Solution
The fourth proportional to 266,390.40, 399,584.52 and 126,247.44 is: 189,370.65
Step by Step Solution
- Step 1: Write the proportion equation
266,390.40 : 399,584.52 = 126,247.44 : x - Step 2: Convert to fraction form
266,390.40/399,584.52 = 126,247.44/x - Step 3: Cross multiply
266,390.40x = 399,584.52 × 126,247.44 - Step 4: Simplify right side
266,390.40x = 50,446,522,713.63 - Step 5: Solve for x
x = 50,446,522,713.63/266,390.40 - Step 6: Final answer
x = 189,370.65
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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.