Finding the Fourth Proportional to 221,869.80, 332,804.70 and 74,125.80
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Solution
The fourth proportional to 221,869.80, 332,804.70 and 74,125.80 is: 111,188.70
Step by Step Solution
- Step 1: Write the proportion equation
221,869.80 : 332,804.70 = 74,125.80 : x - Step 2: Convert to fraction form
221,869.80/332,804.70 = 74,125.80/x - Step 3: Cross multiply
221,869.80x = 332,804.70 × 74,125.80 - Step 4: Simplify right side
221,869.80x = 24,669,414,631.26 - Step 5: Solve for x
x = 24,669,414,631.26/221,869.80 - Step 6: Final answer
x = 111,188.70
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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.