Finding the Fourth Proportional to 208,862.80, 288,232.12 and 113,369.48
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Solution
The fourth proportional to 208,862.80, 288,232.12 and 113,369.48 is: 156,450.67
Step by Step Solution
- Step 1: Write the proportion equation
208,862.80 : 288,232.12 = 113,369.48 : x - Step 2: Convert to fraction form
208,862.80/288,232.12 = 113,369.48/x - Step 3: Cross multiply
208,862.80x = 288,232.12 × 113,369.48 - Step 4: Simplify right side
208,862.80x = 32,676,725,563.70 - Step 5: Solve for x
x = 32,676,725,563.70/208,862.80 - Step 6: Final answer
x = 156,450.67
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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.