Finding the Fourth Proportional to 267.32, 400.91 and 120.99
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Solution
The fourth proportional to 267.32, 400.91 and 120.99 is: 181.45
Step by Step Solution
- Step 1: Write the proportion equation
267.32 : 400.91 = 120.99 : x - Step 2: Convert to fraction form
267.32/400.91 = 120.99/x - Step 3: Cross multiply
267.32x = 400.91 × 120.99 - Step 4: Simplify right side
267.32x = 48,506.10 - Step 5: Solve for x
x = 48,506.10/267.32 - Step 6: Final answer
x = 181.45
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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.