Finding the Fourth Proportional to 340.99, 511.17 and 132.61
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Solution
The fourth proportional to 340.99, 511.17 and 132.61 is: 198.79
Step by Step Solution
- Step 1: Write the proportion equation
340.99 : 511.17 = 132.61 : x - Step 2: Convert to fraction form
340.99/511.17 = 132.61/x - Step 3: Cross multiply
340.99x = 511.17 × 132.61 - Step 4: Simplify right side
340.99x = 67,786.25 - Step 5: Solve for x
x = 67,786.25/340.99 - Step 6: Final answer
x = 198.79
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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.