Finding the Fourth Proportional to 208,804.86, 288,151.56 and 113,311.62
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Solution
The fourth proportional to 208,804.86, 288,151.56 and 113,311.62 is: 156,370.50
Step by Step Solution
- Step 1: Write the proportion equation
208,804.86 : 288,151.56 = 113,311.62 : x - Step 2: Convert to fraction form
208,804.86/288,151.56 = 113,311.62/x - Step 3: Cross multiply
208,804.86x = 288,151.56 × 113,311.62 - Step 4: Simplify right side
208,804.86x = 32,650,920,069.13 - Step 5: Solve for x
x = 32,650,920,069.13/208,804.86 - Step 6: Final answer
x = 156,370.50
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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.