Finding the Fourth Proportional to 409.52, 614.39 and 306.99
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Solution
The fourth proportional to 409.52, 614.39 and 306.99 is: 460.57
Step by Step Solution
- Step 1: Write the proportion equation
409.52 : 614.39 = 306.99 : x - Step 2: Convert to fraction form
409.52/614.39 = 306.99/x - Step 3: Cross multiply
409.52x = 614.39 × 306.99 - Step 4: Simplify right side
409.52x = 188,610.05 - Step 5: Solve for x
x = 188,610.05/409.52 - Step 6: Final answer
x = 460.57
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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.