Finding the Fourth Proportional to 340.76, 511.12 and 84.26
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Solution
The fourth proportional to 340.76, 511.12 and 84.26 is: 126.39
Step by Step Solution
- Step 1: Write the proportion equation
340.76 : 511.12 = 84.26 : x - Step 2: Convert to fraction form
340.76/511.12 = 84.26/x - Step 3: Cross multiply
340.76x = 511.12 × 84.26 - Step 4: Simplify right side
340.76x = 43,066.97 - Step 5: Solve for x
x = 43,066.97/340.76 - Step 6: Final answer
x = 126.39
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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.