Finding the Fourth Proportional to 266.87, 400.11 and 129.63
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Solution
The fourth proportional to 266.87, 400.11 and 129.63 is: 194.35
Step by Step Solution
- Step 1: Write the proportion equation
266.87 : 400.11 = 129.63 : x - Step 2: Convert to fraction form
266.87/400.11 = 129.63/x - Step 3: Cross multiply
266.87x = 400.11 × 129.63 - Step 4: Simplify right side
266.87x = 51,866.26 - Step 5: Solve for x
x = 51,866.26/266.87 - Step 6: Final answer
x = 194.35
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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.