Finding the Fourth Proportional to 221,415.30, 332,122.95 and 206,543.70
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Solution
The fourth proportional to 221,415.30, 332,122.95 and 206,543.70 is: 309,815.55
Step by Step Solution
- Step 1: Write the proportion equation
221,415.30 : 332,122.95 = 206,543.70 : x - Step 2: Convert to fraction form
221,415.30/332,122.95 = 206,543.70/x - Step 3: Cross multiply
221,415.30x = 332,122.95 × 206,543.70 - Step 4: Simplify right side
221,415.30x = 68,597,902,947.92 - Step 5: Solve for x
x = 68,597,902,947.92/221,415.30 - Step 6: Final answer
x = 309,815.55
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1.5x scale
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.