Finding the Fourth Proportional to 221,431.38, 332,199.80 and 71,671.70
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Solution
The fourth proportional to 221,431.38, 332,199.80 and 71,671.70 is: 107,524.61
Step by Step Solution
- Step 1: Write the proportion equation
221,431.38 : 332,199.80 = 71,671.70 : x - Step 2: Convert to fraction form
221,431.38/332,199.80 = 71,671.70/x - Step 3: Cross multiply
221,431.38x = 332,199.80 × 71,671.70 - Step 4: Simplify right side
221,431.38x = 23,809,322,386.30 - Step 5: Solve for x
x = 23,809,322,386.30/221,431.38 - Step 6: Final answer
x = 107,524.61
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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.