Finding the Fourth Proportional to 221,532.96, 332,343.36 and 81,292.80
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Solution
The fourth proportional to 221,532.96, 332,343.36 and 81,292.80 is: 121,955.32
Step by Step Solution
- Step 1: Write the proportion equation
221,532.96 : 332,343.36 = 81,292.80 : x - Step 2: Convert to fraction form
221,532.96/332,343.36 = 81,292.80/x - Step 3: Cross multiply
221,532.96x = 332,343.36 × 81,292.80 - Step 4: Simplify right side
221,532.96x = 27,017,122,295.81 - Step 5: Solve for x
x = 27,017,122,295.81/221,532.96 - Step 6: Final answer
x = 121,955.32
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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.