Finding the Fourth Proportional to 418.68, 627.66 and 201.96
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Solution
The fourth proportional to 418.68, 627.66 and 201.96 is: 302.77
Step by Step Solution
- Step 1: Write the proportion equation
418.68 : 627.66 = 201.96 : x - Step 2: Convert to fraction form
418.68/627.66 = 201.96/x - Step 3: Cross multiply
418.68x = 627.66 × 201.96 - Step 4: Simplify right side
418.68x = 126,762.21 - Step 5: Solve for x
x = 126,762.21/418.68 - Step 6: Final answer
x = 302.77
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.