Finding the Fourth Proportional to 641.36, 884.36 and 416.99
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Solution
The fourth proportional to 641.36, 884.36 and 416.99 is: 574.98
Step by Step Solution
- Step 1: Write the proportion equation
641.36 : 884.36 = 416.99 : x - Step 2: Convert to fraction form
641.36/884.36 = 416.99/x - Step 3: Cross multiply
641.36x = 884.36 × 416.99 - Step 4: Simplify right side
641.36x = 368,772.53 - Step 5: Solve for x
x = 368,772.53/641.36 - Step 6: Final answer
x = 574.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.