Finding the Fourth Proportional to 288,614.20, 432,921.30 and 194,135.80
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Solution
The fourth proportional to 288,614.20, 432,921.30 and 194,135.80 is: 291,203.70
Step by Step Solution
- Step 1: Write the proportion equation
288,614.20 : 432,921.30 = 194,135.80 : x - Step 2: Convert to fraction form
288,614.20/432,921.30 = 194,135.80/x - Step 3: Cross multiply
288,614.20x = 432,921.30 × 194,135.80 - Step 4: Simplify right side
288,614.20x = 84,045,522,912.54 - Step 5: Solve for x
x = 84,045,522,912.54/288,614.20 - Step 6: Final answer
x = 291,203.70
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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.