Finding the Fourth Proportional to 355,898.43, 491,139.79 and 194,753.50
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Solution
The fourth proportional to 355,898.43, 491,139.79 and 194,753.50 is: 268,759.80
Step by Step Solution
- Step 1: Write the proportion equation
355,898.43 : 491,139.79 = 194,753.50 : x - Step 2: Convert to fraction form
355,898.43/491,139.79 = 194,753.50/x - Step 3: Cross multiply
355,898.43x = 491,139.79 × 194,753.50 - Step 4: Simplify right side
355,898.43x = 95,651,191,377.03 - Step 5: Solve for x
x = 95,651,191,377.03/355,898.43 - Step 6: Final answer
x = 268,759.80
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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.