Finding the Fourth Proportional to 266.66, 399.99 and 178.88
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Solution
The fourth proportional to 266.66, 399.99 and 178.88 is: 268.32
Step by Step Solution
- Step 1: Write the proportion equation
266.66 : 399.99 = 178.88 : x - Step 2: Convert to fraction form
266.66/399.99 = 178.88/x - Step 3: Cross multiply
266.66x = 399.99 × 178.88 - Step 4: Simplify right side
266.66x = 71,548.21 - Step 5: Solve for x
x = 71,548.21/266.66 - Step 6: Final answer
x = 268.32
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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.