Finding the Fourth Proportional to 305.68, 421.79 and 174.67
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Solution
The fourth proportional to 305.68, 421.79 and 174.67 is: 241.02
Step by Step Solution
- Step 1: Write the proportion equation
305.68 : 421.79 = 174.67 : x - Step 2: Convert to fraction form
305.68/421.79 = 174.67/x - Step 3: Cross multiply
305.68x = 421.79 × 174.67 - Step 4: Simplify right side
305.68x = 73,674.06 - Step 5: Solve for x
x = 73,674.06/305.68 - Step 6: Final answer
x = 241.02
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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.