Finding the Fourth Proportional to 267.21, 400.95 and 157.50
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Solution
The fourth proportional to 267.21, 400.95 and 157.50 is: 236.33
Step by Step Solution
- Step 1: Write the proportion equation
267.21 : 400.95 = 157.50 : x - Step 2: Convert to fraction form
267.21/400.95 = 157.50/x - Step 3: Cross multiply
267.21x = 400.95 × 157.50 - Step 4: Simplify right side
267.21x = 63,149.63 - Step 5: Solve for x
x = 63,149.63/267.21 - Step 6: Final answer
x = 236.33
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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.