Finding the Fourth Proportional to 221,370.80, 332,056.20 and 71,715.20
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Solution
The fourth proportional to 221,370.80, 332,056.20 and 71,715.20 is: 107,572.80
Step by Step Solution
- Step 1: Write the proportion equation
221,370.80 : 332,056.20 = 71,715.20 : x - Step 2: Convert to fraction form
221,370.80/332,056.20 = 71,715.20/x - Step 3: Cross multiply
221,370.80x = 332,056.20 × 71,715.20 - Step 4: Simplify right side
221,370.80x = 23,813,476,794.24 - Step 5: Solve for x
x = 23,813,476,794.24/221,370.80 - Step 6: Final answer
x = 107,572.80
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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.