Finding the Fourth Proportional to 173.99, 240.09 and 129.76
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Solution
The fourth proportional to 173.99, 240.09 and 129.76 is: 179.06
Step by Step Solution
- Step 1: Write the proportion equation
173.99 : 240.09 = 129.76 : x - Step 2: Convert to fraction form
173.99/240.09 = 129.76/x - Step 3: Cross multiply
173.99x = 240.09 × 129.76 - Step 4: Simplify right side
173.99x = 31,154.08 - Step 5: Solve for x
x = 31,154.08/173.99 - Step 6: Final answer
x = 179.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.