Finding the Fourth Proportional to 283.40, 426.08 and 229.68
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Solution
The fourth proportional to 283.40, 426.08 and 229.68 is: 345.31
Step by Step Solution
- Step 1: Write the proportion equation
283.40 : 426.08 = 229.68 : x - Step 2: Convert to fraction form
283.40/426.08 = 229.68/x - Step 3: Cross multiply
283.40x = 426.08 × 229.68 - Step 4: Simplify right side
283.40x = 97,862.05 - Step 5: Solve for x
x = 97,862.05/283.40 - Step 6: Final answer
x = 345.31
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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.