Finding the Fourth Proportional to 418.24, 626.64 and 201.28
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Solution
The fourth proportional to 418.24, 626.64 and 201.28 is: 301.57
Step by Step Solution
- Step 1: Write the proportion equation
418.24 : 626.64 = 201.28 : x - Step 2: Convert to fraction form
418.24/626.64 = 201.28/x - Step 3: Cross multiply
418.24x = 626.64 × 201.28 - Step 4: Simplify right side
418.24x = 126,130.10 - Step 5: Solve for x
x = 126,130.10/418.24 - Step 6: Final answer
x = 301.57
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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.