Finding the Fourth Proportional to 283.19, 424.92 and 129.23
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Solution
The fourth proportional to 283.19, 424.92 and 129.23 is: 193.91
Step by Step Solution
- Step 1: Write the proportion equation
283.19 : 424.92 = 129.23 : x - Step 2: Convert to fraction form
283.19/424.92 = 129.23/x - Step 3: Cross multiply
283.19x = 424.92 × 129.23 - Step 4: Simplify right side
283.19x = 54,912.41 - Step 5: Solve for x
x = 54,912.41/283.19 - Step 6: Final answer
x = 193.91
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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.