Finding the Fourth Proportional to 285.42, 393.93 and 174.99
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Solution
The fourth proportional to 285.42, 393.93 and 174.99 is: 241.52
Step by Step Solution
- Step 1: Write the proportion equation
285.42 : 393.93 = 174.99 : x - Step 2: Convert to fraction form
285.42/393.93 = 174.99/x - Step 3: Cross multiply
285.42x = 393.93 × 174.99 - Step 4: Simplify right side
285.42x = 68,933.81 - Step 5: Solve for x
x = 68,933.81/285.42 - Step 6: Final answer
x = 241.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.