Finding the Fourth Proportional to 266.99, 400.77 and 157.53
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Solution
The fourth proportional to 266.99, 400.77 and 157.53 is: 236.47
Step by Step Solution
- Step 1: Write the proportion equation
266.99 : 400.77 = 157.53 : x - Step 2: Convert to fraction form
266.99/400.77 = 157.53/x - Step 3: Cross multiply
266.99x = 400.77 × 157.53 - Step 4: Simplify right side
266.99x = 63,133.30 - Step 5: Solve for x
x = 63,133.30/266.99 - Step 6: Final answer
x = 236.47
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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.