Finding the Fourth Proportional to 209,033.06, 288,465.71 and 113,541.75
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Solution
The fourth proportional to 209,033.06, 288,465.71 and 113,541.75 is: 156,687.66
Step by Step Solution
- Step 1: Write the proportion equation
209,033.06 : 288,465.71 = 113,541.75 : x - Step 2: Convert to fraction form
209,033.06/288,465.71 = 113,541.75/x - Step 3: Cross multiply
209,033.06x = 288,465.71 × 113,541.75 - Step 4: Simplify right side
209,033.06x = 32,752,900,960.68 - Step 5: Solve for x
x = 32,752,900,960.68/209,033.06 - Step 6: Final answer
x = 156,687.66
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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.