Finding the Fourth Proportional to 245.99, 369.05 and 83.68
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Solution
The fourth proportional to 245.99, 369.05 and 83.68 is: 125.54
Step by Step Solution
- Step 1: Write the proportion equation
245.99 : 369.05 = 83.68 : x - Step 2: Convert to fraction form
245.99/369.05 = 83.68/x - Step 3: Cross multiply
245.99x = 369.05 × 83.68 - Step 4: Simplify right side
245.99x = 30,880.76 - Step 5: Solve for x
x = 30,880.76/245.99 - Step 6: Final answer
x = 125.54
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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.