Finding the Fourth Proportional to 438.75, 657.68 and 195.03
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Solution
The fourth proportional to 438.75, 657.68 and 195.03 is: 292.34
Step by Step Solution
- Step 1: Write the proportion equation
438.75 : 657.68 = 195.03 : x - Step 2: Convert to fraction form
438.75/657.68 = 195.03/x - Step 3: Cross multiply
438.75x = 657.68 × 195.03 - Step 4: Simplify right side
438.75x = 128,266.36 - Step 5: Solve for x
x = 128,266.36/438.75 - Step 6: Final answer
x = 292.34
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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.