Finding the Fourth Proportional to 272,446.26, 408,684.76 and 82,912.80
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Solution
The fourth proportional to 272,446.26, 408,684.76 and 82,912.80 is: 124,373.88
Step by Step Solution
- Step 1: Write the proportion equation
272,446.26 : 408,684.76 = 82,912.80 : x - Step 2: Convert to fraction form
272,446.26/408,684.76 = 82,912.80/x - Step 3: Cross multiply
272,446.26x = 408,684.76 × 82,912.80 - Step 4: Simplify right side
272,446.26x = 33,885,199,094.21 - Step 5: Solve for x
x = 33,885,199,094.21/272,446.26 - Step 6: Final answer
x = 124,373.88
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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.