Finding the Fourth Proportional to 208,858.52, 288,217.06 and 113,363.17
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Solution
The fourth proportional to 208,858.52, 288,217.06 and 113,363.17 is: 156,436.99
Step by Step Solution
- Step 1: Write the proportion equation
208,858.52 : 288,217.06 = 113,363.17 : x - Step 2: Convert to fraction form
208,858.52/288,217.06 = 113,363.17/x - Step 3: Cross multiply
208,858.52x = 288,217.06 × 113,363.17 - Step 4: Simplify right side
208,858.52x = 32,673,198,565.73 - Step 5: Solve for x
x = 32,673,198,565.73/208,858.52 - Step 6: Final answer
x = 156,436.99
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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.