Finding the Fourth Proportional to 403.26, 604.67 and 197.78
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Solution
The fourth proportional to 403.26, 604.67 and 197.78 is: 296.55
Step by Step Solution
- Step 1: Write the proportion equation
403.26 : 604.67 = 197.78 : x - Step 2: Convert to fraction form
403.26/604.67 = 197.78/x - Step 3: Cross multiply
403.26x = 604.67 × 197.78 - Step 4: Simplify right side
403.26x = 119,587.62 - Step 5: Solve for x
x = 119,587.62/403.26 - Step 6: Final answer
x = 296.55
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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.