Finding the Fourth Proportional to 343.99, 515.99 and 100.49
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Solution
The fourth proportional to 343.99, 515.99 and 100.49 is: 150.74
Step by Step Solution
- Step 1: Write the proportion equation
343.99 : 515.99 = 100.49 : x - Step 2: Convert to fraction form
343.99/515.99 = 100.49/x - Step 3: Cross multiply
343.99x = 515.99 × 100.49 - Step 4: Simplify right side
343.99x = 51,851.84 - Step 5: Solve for x
x = 51,851.84/343.99 - Step 6: Final answer
x = 150.74
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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.