Finding the Fourth Proportional to 266.91, 400.07 and 129.66
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Solution
The fourth proportional to 266.91, 400.07 and 129.66 is: 194.35
Step by Step Solution
- Step 1: Write the proportion equation
266.91 : 400.07 = 129.66 : x - Step 2: Convert to fraction form
266.91/400.07 = 129.66/x - Step 3: Cross multiply
266.91x = 400.07 × 129.66 - Step 4: Simplify right side
266.91x = 51,873.08 - Step 5: Solve for x
x = 51,873.08/266.91 - 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.