Finding the Fourth Proportional to 409.87, 613.99 and 192.79
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Solution
The fourth proportional to 409.87, 613.99 and 192.79 is: 288.80
Step by Step Solution
- Step 1: Write the proportion equation
409.87 : 613.99 = 192.79 : x - Step 2: Convert to fraction form
409.87/613.99 = 192.79/x - Step 3: Cross multiply
409.87x = 613.99 × 192.79 - Step 4: Simplify right side
409.87x = 118,371.13 - Step 5: Solve for x
x = 118,371.13/409.87 - Step 6: Final answer
x = 288.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.