Finding the Fourth Proportional to 393,785.21, 590,532.93 and 140,997.17
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Solution
The fourth proportional to 393,785.21, 590,532.93 and 140,997.17 is: 211,443.88
Step by Step Solution
- Step 1: Write the proportion equation
393,785.21 : 590,532.93 = 140,997.17 : x - Step 2: Convert to fraction form
393,785.21/590,532.93 = 140,997.17/x - Step 3: Cross multiply
393,785.21x = 590,532.93 × 140,997.17 - Step 4: Simplify right side
393,785.21x = 83,263,473,398.14 - Step 5: Solve for x
x = 83,263,473,398.14/393,785.21 - Step 6: Final answer
x = 211,443.88
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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.