Finding the Fourth Proportional to 221,494.68, 332,274.63 and 71,685.18
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Solution
The fourth proportional to 221,494.68, 332,274.63 and 71,685.18 is: 107,538.32
Step by Step Solution
- Step 1: Write the proportion equation
221,494.68 : 332,274.63 = 71,685.18 : x - Step 2: Convert to fraction form
221,494.68/332,274.63 = 71,685.18/x - Step 3: Cross multiply
221,494.68x = 332,274.63 × 71,685.18 - Step 4: Simplify right side
221,494.68x = 23,819,166,302.56 - Step 5: Solve for x
x = 23,819,166,302.56/221,494.68 - Step 6: Final answer
x = 107,538.32
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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.