Finding the Fourth Proportional to 392,120.40, 588,375.18 and 155,457.84
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Solution
The fourth proportional to 392,120.40, 588,375.18 and 155,457.84 is: 233,263.90
Step by Step Solution
- Step 1: Write the proportion equation
392,120.40 : 588,375.18 = 155,457.84 : x - Step 2: Convert to fraction form
392,120.40/588,375.18 = 155,457.84/x - Step 3: Cross multiply
392,120.40x = 588,375.18 × 155,457.84 - Step 4: Simplify right side
392,120.40x = 91,467,534,592.41 - Step 5: Solve for x
x = 91,467,534,592.41/392,120.40 - Step 6: Final answer
x = 233,263.90
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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.