Finding the Fourth Proportional to 271.99, 407.99 and 141.80
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Solution
The fourth proportional to 271.99, 407.99 and 141.80 is: 212.71
Step by Step Solution
- Step 1: Write the proportion equation
271.99 : 407.99 = 141.80 : x - Step 2: Convert to fraction form
271.99/407.99 = 141.80/x - Step 3: Cross multiply
271.99x = 407.99 × 141.80 - Step 4: Simplify right side
271.99x = 57,854.36 - Step 5: Solve for x
x = 57,854.36/271.99 - Step 6: Final answer
x = 212.71
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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.