Finding the Fourth Proportional to 431,814.81, 647,796.03 and 147,489.75
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Solution
The fourth proportional to 431,814.81, 647,796.03 and 147,489.75 is: 221,259.84
Step by Step Solution
- Step 1: Write the proportion equation
431,814.81 : 647,796.03 = 147,489.75 : x - Step 2: Convert to fraction form
431,814.81/647,796.03 = 147,489.75/x - Step 3: Cross multiply
431,814.81x = 647,796.03 × 147,489.75 - Step 4: Simplify right side
431,814.81x = 95,543,274,515.69 - Step 5: Solve for x
x = 95,543,274,515.69/431,814.81 - Step 6: Final answer
x = 221,259.84
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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.