Finding the Fourth Proportional to 757.23, 1,135.80 and 270.26
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Solution
The fourth proportional to 757.23, 1,135.80 and 270.26 is: 405.37
Step by Step Solution
- Step 1: Write the proportion equation
757.23 : 1,135.80 = 270.26 : x - Step 2: Convert to fraction form
757.23/1,135.80 = 270.26/x - Step 3: Cross multiply
757.23x = 1,135.80 × 270.26 - Step 4: Simplify right side
757.23x = 306,955.63 - Step 5: Solve for x
x = 306,955.63/757.23 - Step 6: Final answer
x = 405.37
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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.