Finding the Fourth Proportional to 343.53, 514.91 and 137.99
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Solution
The fourth proportional to 343.53, 514.91 and 137.99 is: 206.84
Step by Step Solution
- Step 1: Write the proportion equation
343.53 : 514.91 = 137.99 : x - Step 2: Convert to fraction form
343.53/514.91 = 137.99/x - Step 3: Cross multiply
343.53x = 514.91 × 137.99 - Step 4: Simplify right side
343.53x = 71,054.06 - Step 5: Solve for x
x = 71,054.06/343.53 - Step 6: Final answer
x = 206.84
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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.