Finding the Fourth Proportional to 343.64, 511.07 and 339.99
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Solution
The fourth proportional to 343.64, 511.07 and 339.99 is: 505.65
Step by Step Solution
- Step 1: Write the proportion equation
343.64 : 511.07 = 339.99 : x - Step 2: Convert to fraction form
343.64/511.07 = 339.99/x - Step 3: Cross multiply
343.64x = 511.07 × 339.99 - Step 4: Simplify right side
343.64x = 173,759.54 - Step 5: Solve for x
x = 173,759.54/343.64 - Step 6: Final answer
x = 505.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.