Finding the Fourth Proportional to 176.68, 243.79 and 102.99
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Solution
The fourth proportional to 176.68, 243.79 and 102.99 is: 142.11
Step by Step Solution
- Step 1: Write the proportion equation
176.68 : 243.79 = 102.99 : x - Step 2: Convert to fraction form
176.68/243.79 = 102.99/x - Step 3: Cross multiply
176.68x = 243.79 × 102.99 - Step 4: Simplify right side
176.68x = 25,107.93 - Step 5: Solve for x
x = 25,107.93/176.68 - Step 6: Final answer
x = 142.11
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.