Finding the Fourth Proportional to 343.80, 515.43 and 235.26
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Solution
The fourth proportional to 343.80, 515.43 and 235.26 is: 352.71
Step by Step Solution
- Step 1: Write the proportion equation
343.80 : 515.43 = 235.26 : x - Step 2: Convert to fraction form
343.80/515.43 = 235.26/x - Step 3: Cross multiply
343.80x = 515.43 × 235.26 - Step 4: Simplify right side
343.80x = 121,260.06 - Step 5: Solve for x
x = 121,260.06/343.80 - Step 6: Final answer
x = 352.71
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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.