Finding the Fourth Proportional to 221,996.60, 332,338.80 and 147,201.20
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Solution
The fourth proportional to 221,996.60, 332,338.80 and 147,201.20 is: 220,366.75
Step by Step Solution
- Step 1: Write the proportion equation
221,996.60 : 332,338.80 = 147,201.20 : x - Step 2: Convert to fraction form
221,996.60/332,338.80 = 147,201.20/x - Step 3: Cross multiply
221,996.60x = 332,338.80 × 147,201.20 - Step 4: Simplify right side
221,996.60x = 48,920,670,166.56 - Step 5: Solve for x
x = 48,920,670,166.56/221,996.60 - Step 6: Final answer
x = 220,366.75
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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.