Finding the Fourth Proportional to 221,791.80, 332,687.70 and 74,047.80
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Solution
The fourth proportional to 221,791.80, 332,687.70 and 74,047.80 is: 111,071.70
Step by Step Solution
- Step 1: Write the proportion equation
221,791.80 : 332,687.70 = 74,047.80 : x - Step 2: Convert to fraction form
221,791.80/332,687.70 = 74,047.80/x - Step 3: Cross multiply
221,791.80x = 332,687.70 × 74,047.80 - Step 4: Simplify right side
221,791.80x = 24,634,792,272.06 - Step 5: Solve for x
x = 24,634,792,272.06/221,791.80 - Step 6: Final answer
x = 111,071.70
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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.