Finding the Fourth Proportional to 343.24, 514.99 and 206.39
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Solution
The fourth proportional to 343.24, 514.99 and 206.39 is: 309.66
Step by Step Solution
- Step 1: Write the proportion equation
343.24 : 514.99 = 206.39 : x - Step 2: Convert to fraction form
343.24/514.99 = 206.39/x - Step 3: Cross multiply
343.24x = 514.99 × 206.39 - Step 4: Simplify right side
343.24x = 106,288.79 - Step 5: Solve for x
x = 106,288.79/343.24 - Step 6: Final answer
x = 309.66
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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.