Finding the Fourth Proportional to 486.13, 729.20 and 177.99
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Solution
The fourth proportional to 486.13, 729.20 and 177.99 is: 266.99
Step by Step Solution
- Step 1: Write the proportion equation
486.13 : 729.20 = 177.99 : x - Step 2: Convert to fraction form
486.13/729.20 = 177.99/x - Step 3: Cross multiply
486.13x = 729.20 × 177.99 - Step 4: Simplify right side
486.13x = 129,790.31 - Step 5: Solve for x
x = 129,790.31/486.13 - Step 6: Final answer
x = 266.99
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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.