Finding the Fourth Proportional to 194,896.42, 268,967.87 and 137,554.09
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Solution
The fourth proportional to 194,896.42, 268,967.87 and 137,554.09 is: 189,832.27
Step by Step Solution
- Step 1: Write the proportion equation
194,896.42 : 268,967.87 = 137,554.09 : x - Step 2: Convert to fraction form
194,896.42/268,967.87 = 137,554.09/x - Step 3: Cross multiply
194,896.42x = 268,967.87 × 137,554.09 - Step 4: Simplify right side
194,896.42x = 36,997,630,597.09 - Step 5: Solve for x
x = 36,997,630,597.09/194,896.42 - Step 6: Final answer
x = 189,832.27
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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.