Finding the Fourth Proportional to 221,622.84, 332,580.06 and 81,382.68
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Solution
The fourth proportional to 221,622.84, 332,580.06 and 81,382.68 is: 122,127.56
Step by Step Solution
- Step 1: Write the proportion equation
221,622.84 : 332,580.06 = 81,382.68 : x - Step 2: Convert to fraction form
221,622.84/332,580.06 = 81,382.68/x - Step 3: Cross multiply
221,622.84x = 332,580.06 × 81,382.68 - Step 4: Simplify right side
221,622.84x = 27,066,256,597.36 - Step 5: Solve for x
x = 27,066,256,597.36/221,622.84 - Step 6: Final answer
x = 122,127.56
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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.