Finding the Fourth Proportional to 209,194.14, 288,688.95 and 113,702.70
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Solution
The fourth proportional to 209,194.14, 288,688.95 and 113,702.70 is: 156,910.29
Step by Step Solution
- Step 1: Write the proportion equation
209,194.14 : 288,688.95 = 113,702.70 : x - Step 2: Convert to fraction form
209,194.14/288,688.95 = 113,702.70/x - Step 3: Cross multiply
209,194.14x = 288,688.95 × 113,702.70 - Step 4: Simplify right side
209,194.14x = 32,824,713,075.17 - Step 5: Solve for x
x = 32,824,713,075.17/209,194.14 - Step 6: Final answer
x = 156,910.29
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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.