Finding the Fourth Proportional to 198,572.57, 274,031.97 and 107,928.74
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Solution
The fourth proportional to 198,572.57, 274,031.97 and 107,928.74 is: 148,942.65
Step by Step Solution
- Step 1: Write the proportion equation
198,572.57 : 274,031.97 = 107,928.74 : x - Step 2: Convert to fraction form
198,572.57/274,031.97 = 107,928.74/x - Step 3: Cross multiply
198,572.57x = 274,031.97 × 107,928.74 - Step 4: Simplify right side
198,572.57x = 29,575,923,871.66 - Step 5: Solve for x
x = 29,575,923,871.66/198,572.57 - Step 6: Final answer
x = 148,942.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.