Finding the Fourth Proportional to 221,431.44, 332,065.60 and 79,238.14
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Solution
The fourth proportional to 221,431.44, 332,065.60 and 79,238.14 is: 118,828.02
Step by Step Solution
- Step 1: Write the proportion equation
221,431.44 : 332,065.60 = 79,238.14 : x - Step 2: Convert to fraction form
221,431.44/332,065.60 = 79,238.14/x - Step 3: Cross multiply
221,431.44x = 332,065.60 × 79,238.14 - Step 4: Simplify right side
221,431.44x = 26,312,260,501.98 - Step 5: Solve for x
x = 26,312,260,501.98/221,431.44 - Step 6: Final answer
x = 118,828.02
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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.