Finding the Fourth Proportional to 355,285.64, 490,288.26 and 194,136.99
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Solution
The fourth proportional to 355,285.64, 490,288.26 and 194,136.99 is: 267,905.81
Step by Step Solution
- Step 1: Write the proportion equation
355,285.64 : 490,288.26 = 194,136.99 : x - Step 2: Convert to fraction form
355,285.64/490,288.26 = 194,136.99/x - Step 3: Cross multiply
355,285.64x = 490,288.26 × 194,136.99 - Step 4: Simplify right side
355,285.64x = 95,183,087,028.74 - Step 5: Solve for x
x = 95,183,087,028.74/355,285.64 - Step 6: Final answer
x = 267,905.81
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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.