Finding the Fourth Proportional to 431,659.72, 647,548.71 and 147,273.99
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Solution
The fourth proportional to 431,659.72, 647,548.71 and 147,273.99 is: 220,931.16
Step by Step Solution
- Step 1: Write the proportion equation
431,659.72 : 647,548.71 = 147,273.99 : x - Step 2: Convert to fraction form
431,659.72/647,548.71 = 147,273.99/x - Step 3: Cross multiply
431,659.72x = 647,548.71 × 147,273.99 - Step 4: Simplify right side
431,659.72x = 95,367,082,241.05 - Step 5: Solve for x
x = 95,367,082,241.05/431,659.72 - Step 6: Final answer
x = 220,931.16
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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.