Finding the Fourth Proportional to 221,664.20, 332,277.60 and 109,252.40
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Solution
The fourth proportional to 221,664.20, 332,277.60 and 109,252.40 is: 163,770.81
Step by Step Solution
- Step 1: Write the proportion equation
221,664.20 : 332,277.60 = 109,252.40 : x - Step 2: Convert to fraction form
221,664.20/332,277.60 = 109,252.40/x - Step 3: Cross multiply
221,664.20x = 332,277.60 × 109,252.40 - Step 4: Simplify right side
221,664.20x = 36,302,125,266.24 - Step 5: Solve for x
x = 36,302,125,266.24/221,664.20 - Step 6: Final answer
x = 163,770.81
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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.