Finding the Fourth Proportional to 231,576.18, 347,182.80 and 91,439.70
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Solution
The fourth proportional to 231,576.18, 347,182.80 and 91,439.70 is: 137,087.89
Step by Step Solution
- Step 1: Write the proportion equation
231,576.18 : 347,182.80 = 91,439.70 : x - Step 2: Convert to fraction form
231,576.18/347,182.80 = 91,439.70/x - Step 3: Cross multiply
231,576.18x = 347,182.80 × 91,439.70 - Step 4: Simplify right side
231,576.18x = 31,746,289,341.25 - Step 5: Solve for x
x = 31,746,289,341.25/231,576.18 - Step 6: Final answer
x = 137,087.89
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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.