Finding the Fourth Proportional to 436.72, 654.86 and 231.08
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Solution
The fourth proportional to 436.72, 654.86 and 231.08 is: 346.50
Step by Step Solution
- Step 1: Write the proportion equation
436.72 : 654.86 = 231.08 : x - Step 2: Convert to fraction form
436.72/654.86 = 231.08/x - Step 3: Cross multiply
436.72x = 654.86 × 231.08 - Step 4: Simplify right side
436.72x = 151,325.05 - Step 5: Solve for x
x = 151,325.05/436.72 - Step 6: Final answer
x = 346.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.