Finding the Fourth Proportional to 289.26, 433.70 and 192.88
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Solution
The fourth proportional to 289.26, 433.70 and 192.88 is: 289.19
Step by Step Solution
- Step 1: Write the proportion equation
289.26 : 433.70 = 192.88 : x - Step 2: Convert to fraction form
289.26/433.70 = 192.88/x - Step 3: Cross multiply
289.26x = 433.70 × 192.88 - Step 4: Simplify right side
289.26x = 83,652.06 - Step 5: Solve for x
x = 83,652.06/289.26 - Step 6: Final answer
x = 289.19
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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.