Finding the Fourth Proportional to 209,291.76, 288,821.97 and 113,798.70
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Solution
The fourth proportional to 209,291.76, 288,821.97 and 113,798.70 is: 157,041.85
Step by Step Solution
- Step 1: Write the proportion equation
209,291.76 : 288,821.97 = 113,798.70 : x - Step 2: Convert to fraction form
209,291.76/288,821.97 = 113,798.70/x - Step 3: Cross multiply
209,291.76x = 288,821.97 × 113,798.70 - Step 4: Simplify right side
209,291.76x = 32,867,564,717.44 - Step 5: Solve for x
x = 32,867,564,717.44/209,291.76 - Step 6: Final answer
x = 157,041.85
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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.