Finding the Fourth Proportional to 268.68, 370.99 and 206.42
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Solution
The fourth proportional to 268.68, 370.99 and 206.42 is: 285.01
Step by Step Solution
- Step 1: Write the proportion equation
268.68 : 370.99 = 206.42 : x - Step 2: Convert to fraction form
268.68/370.99 = 206.42/x - Step 3: Cross multiply
268.68x = 370.99 × 206.42 - Step 4: Simplify right side
268.68x = 76,578.42 - Step 5: Solve for x
x = 76,578.42/268.68 - Step 6: Final answer
x = 285.01
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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.