Finding the Fourth Proportional to 209,201.10, 313,935.12 and 76,068.60
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Solution
The fourth proportional to 209,201.10, 313,935.12 and 76,068.60 is: 114,151.43
Step by Step Solution
- Step 1: Write the proportion equation
209,201.10 : 313,935.12 = 76,068.60 : x - Step 2: Convert to fraction form
209,201.10/313,935.12 = 76,068.60/x - Step 3: Cross multiply
209,201.10x = 313,935.12 × 76,068.60 - Step 4: Simplify right side
209,201.10x = 23,880,605,069.23 - Step 5: Solve for x
x = 23,880,605,069.23/209,201.10 - Step 6: Final answer
x = 114,151.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.