Finding the Fourth Proportional to 221,549.96, 332,402.70 and 138,346.76
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Solution
The fourth proportional to 221,549.96, 332,402.70 and 138,346.76 is: 207,568.70
Step by Step Solution
- Step 1: Write the proportion equation
221,549.96 : 332,402.70 = 138,346.76 : x - Step 2: Convert to fraction form
221,549.96/332,402.70 = 138,346.76/x - Step 3: Cross multiply
221,549.96x = 332,402.70 × 138,346.76 - Step 4: Simplify right side
221,549.96x = 45,986,836,560.25 - Step 5: Solve for x
x = 45,986,836,560.25/221,549.96 - Step 6: Final answer
x = 207,568.70
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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.