Finding the Fourth Proportional to 221,750.11, 332,620.45 and 71,990.19
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Solution
The fourth proportional to 221,750.11, 332,620.45 and 71,990.19 is: 107,983.75
Step by Step Solution
- Step 1: Write the proportion equation
221,750.11 : 332,620.45 = 71,990.19 : x - Step 2: Convert to fraction form
221,750.11/332,620.45 = 71,990.19/x - Step 3: Cross multiply
221,750.11x = 332,620.45 × 71,990.19 - Step 4: Simplify right side
221,750.11x = 23,945,409,393.39 - Step 5: Solve for x
x = 23,945,409,393.39/221,750.11 - Step 6: Final answer
x = 107,983.75
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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.