Finding the Fourth Proportional to 266.12, 399.08 and 157.79
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Solution
The fourth proportional to 266.12, 399.08 and 157.79 is: 236.62
Step by Step Solution
- Step 1: Write the proportion equation
266.12 : 399.08 = 157.79 : x - Step 2: Convert to fraction form
266.12/399.08 = 157.79/x - Step 3: Cross multiply
266.12x = 399.08 × 157.79 - Step 4: Simplify right side
266.12x = 62,969.23 - Step 5: Solve for x
x = 62,969.23/266.12 - Step 6: Final answer
x = 236.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.