Finding the Fourth Proportional to 268.68, 402.71 and 165.99
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Solution
The fourth proportional to 268.68, 402.71 and 165.99 is: 248.79
Step by Step Solution
- Step 1: Write the proportion equation
268.68 : 402.71 = 165.99 : x - Step 2: Convert to fraction form
268.68/402.71 = 165.99/x - Step 3: Cross multiply
268.68x = 402.71 × 165.99 - Step 4: Simplify right side
268.68x = 66,845.00 - Step 5: Solve for x
x = 66,845.00/268.68 - Step 6: Final answer
x = 248.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.