Finding the Fourth Proportional to 410.97, 616.31 and 136.99
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Solution
The fourth proportional to 410.97, 616.31 and 136.99 is: 205.44
Step by Step Solution
- Step 1: Write the proportion equation
410.97 : 616.31 = 136.99 : x - Step 2: Convert to fraction form
410.97/616.31 = 136.99/x - Step 3: Cross multiply
410.97x = 616.31 × 136.99 - Step 4: Simplify right side
410.97x = 84,428.91 - Step 5: Solve for x
x = 84,428.91/410.97 - Step 6: Final answer
x = 205.44
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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.