Finding the Fourth Proportional to 372,343.80, 558,515.70 and 194,905.20
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Solution
The fourth proportional to 372,343.80, 558,515.70 and 194,905.20 is: 292,357.80
Step by Step Solution
- Step 1: Write the proportion equation
372,343.80 : 558,515.70 = 194,905.20 : x - Step 2: Convert to fraction form
372,343.80/558,515.70 = 194,905.20/x - Step 3: Cross multiply
372,343.80x = 558,515.70 × 194,905.20 - Step 4: Simplify right side
372,343.80x = 108,857,614,211.64 - Step 5: Solve for x
x = 108,857,614,211.64/372,343.80 - Step 6: Final answer
x = 292,357.80
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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.