Finding the Fourth Proportional to 208,708.12, 288,014.97 and 113,213.98
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Solution
The fourth proportional to 208,708.12, 288,014.97 and 113,213.98 is: 156,234.08
Step by Step Solution
- Step 1: Write the proportion equation
208,708.12 : 288,014.97 = 113,213.98 : x - Step 2: Convert to fraction form
208,708.12/288,014.97 = 113,213.98/x - Step 3: Cross multiply
208,708.12x = 288,014.97 × 113,213.98 - Step 4: Simplify right side
208,708.12x = 32,607,321,053.28 - Step 5: Solve for x
x = 32,607,321,053.28/208,708.12 - Step 6: Final answer
x = 156,234.08
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1.5x scale
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.