Finding the Fourth Proportional to 269,793.62, 371,969.30 and 221,216.70
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Solution
The fourth proportional to 269,793.62, 371,969.30 and 221,216.70 is: 304,995.43
Step by Step Solution
- Step 1: Write the proportion equation
269,793.62 : 371,969.30 = 221,216.70 : x - Step 2: Convert to fraction form
269,793.62/371,969.30 = 221,216.70/x - Step 3: Cross multiply
269,793.62x = 371,969.30 × 221,216.70 - Step 4: Simplify right side
269,793.62x = 82,285,819,941.23 - Step 5: Solve for x
x = 82,285,819,941.23/269,793.62 - Step 6: Final answer
x = 304,995.43
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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.