Finding the Fourth Proportional to 271.99, 407.99 and 98.66
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Solution
The fourth proportional to 271.99, 407.99 and 98.66 is: 147.99
Step by Step Solution
- Step 1: Write the proportion equation
271.99 : 407.99 = 98.66 : x - Step 2: Convert to fraction form
271.99/407.99 = 98.66/x - Step 3: Cross multiply
271.99x = 407.99 × 98.66 - Step 4: Simplify right side
271.99x = 40,252.72 - Step 5: Solve for x
x = 40,252.72/271.99 - Step 6: Final answer
x = 147.99
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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.