Finding the Fourth Proportional to 194,895.42, 268,966.49 and 137,553.09
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Solution
The fourth proportional to 194,895.42, 268,966.49 and 137,553.09 is: 189,830.89
Step by Step Solution
- Step 1: Write the proportion equation
194,895.42 : 268,966.49 = 137,553.09 : x - Step 2: Convert to fraction form
194,895.42/268,966.49 = 137,553.09/x - Step 3: Cross multiply
194,895.42x = 268,966.49 × 137,553.09 - Step 4: Simplify right side
194,895.42x = 36,997,171,118.19 - Step 5: Solve for x
x = 36,997,171,118.19/194,895.42 - Step 6: Final answer
x = 189,830.89
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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.