Finding the Fourth Proportional to 283.09, 424.68 and 129.08
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Solution
The fourth proportional to 283.09, 424.68 and 129.08 is: 193.65
Step by Step Solution
- Step 1: Write the proportion equation
283.09 : 424.68 = 129.08 : x - Step 2: Convert to fraction form
283.09/424.68 = 129.08/x - Step 3: Cross multiply
283.09x = 424.68 × 129.08 - Step 4: Simplify right side
283.09x = 54,818.76 - Step 5: Solve for x
x = 54,818.76/283.09 - Step 6: Final answer
x = 193.65
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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.