Finding the Fourth Proportional to 194,614.60, 291,921.90 and 163,121.80
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Solution
The fourth proportional to 194,614.60, 291,921.90 and 163,121.80 is: 244,682.70
Step by Step Solution
- Step 1: Write the proportion equation
194,614.60 : 291,921.90 = 163,121.80 : x - Step 2: Convert to fraction form
194,614.60/291,921.90 = 163,121.80/x - Step 3: Cross multiply
194,614.60x = 291,921.90 × 163,121.80 - Step 4: Simplify right side
194,614.60x = 47,618,825,787.42 - Step 5: Solve for x
x = 47,618,825,787.42/194,614.60 - Step 6: Final answer
x = 244,682.70
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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.