Finding the Fourth Proportional to 283.14, 390.36 and 204.39
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Solution
The fourth proportional to 283.14, 390.36 and 204.39 is: 281.79
Step by Step Solution
- Step 1: Write the proportion equation
283.14 : 390.36 = 204.39 : x - Step 2: Convert to fraction form
283.14/390.36 = 204.39/x - Step 3: Cross multiply
283.14x = 390.36 × 204.39 - Step 4: Simplify right side
283.14x = 79,785.68 - Step 5: Solve for x
x = 79,785.68/283.14 - Step 6: Final answer
x = 281.79
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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.