Finding the Fourth Proportional to 267.63, 400.99 and 190.21
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Solution
The fourth proportional to 267.63, 400.99 and 190.21 is: 284.99
Step by Step Solution
- Step 1: Write the proportion equation
267.63 : 400.99 = 190.21 : x - Step 2: Convert to fraction form
267.63/400.99 = 190.21/x - Step 3: Cross multiply
267.63x = 400.99 × 190.21 - Step 4: Simplify right side
267.63x = 76,272.31 - Step 5: Solve for x
x = 76,272.31/267.63 - Step 6: Final answer
x = 284.99
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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.