Finding the Fourth Proportional to 403.42, 605.26 and 186.88
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Solution
The fourth proportional to 403.42, 605.26 and 186.88 is: 280.38
Step by Step Solution
- Step 1: Write the proportion equation
403.42 : 605.26 = 186.88 : x - Step 2: Convert to fraction form
403.42/605.26 = 186.88/x - Step 3: Cross multiply
403.42x = 605.26 × 186.88 - Step 4: Simplify right side
403.42x = 113,110.99 - Step 5: Solve for x
x = 113,110.99/403.42 - Step 6: Final answer
x = 280.38
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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.