Finding the Fourth Proportional to 438.99, 658.75 and 195.54
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Solution
The fourth proportional to 438.99, 658.75 and 195.54 is: 293.43
Step by Step Solution
- Step 1: Write the proportion equation
438.99 : 658.75 = 195.54 : x - Step 2: Convert to fraction form
438.99/658.75 = 195.54/x - Step 3: Cross multiply
438.99x = 658.75 × 195.54 - Step 4: Simplify right side
438.99x = 128,811.98 - Step 5: Solve for x
x = 128,811.98/438.99 - Step 6: Final answer
x = 293.43
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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.