Finding the Fourth Proportional to 221,621.19, 332,431.79 and 55,409.19
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Solution
The fourth proportional to 221,621.19, 332,431.79 and 55,409.19 is: 83,113.78
Step by Step Solution
- Step 1: Write the proportion equation
221,621.19 : 332,431.79 = 55,409.19 : x - Step 2: Convert to fraction form
221,621.19/332,431.79 = 55,409.19/x - Step 3: Cross multiply
221,621.19x = 332,431.79 × 55,409.19 - Step 4: Simplify right side
221,621.19x = 18,419,775,313.81 - Step 5: Solve for x
x = 18,419,775,313.81/221,621.19 - Step 6: Final answer
x = 83,113.78
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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.