Finding the Fourth Proportional to 355,970.40, 491,217.84 and 194,793.44
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Solution
The fourth proportional to 355,970.40, 491,217.84 and 194,793.44 is: 268,803.28
Step by Step Solution
- Step 1: Write the proportion equation
355,970.40 : 491,217.84 = 194,793.44 : x - Step 2: Convert to fraction form
355,970.40/491,217.84 = 194,793.44/x - Step 3: Cross multiply
355,970.40x = 491,217.84 × 194,793.44 - Step 4: Simplify right side
355,970.40x = 95,686,012,842.97 - Step 5: Solve for x
x = 95,686,012,842.97/355,970.40 - Step 6: Final answer
x = 268,803.28
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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.