Finding the Fourth Proportional to 386,644.13, 579,190.14 and 197,096.84
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Solution
The fourth proportional to 386,644.13, 579,190.14 and 197,096.84 is: 295,249.65
Step by Step Solution
- Step 1: Write the proportion equation
386,644.13 : 579,190.14 = 197,096.84 : x - Step 2: Convert to fraction form
386,644.13/579,190.14 = 197,096.84/x - Step 3: Cross multiply
386,644.13x = 579,190.14 × 197,096.84 - Step 4: Simplify right side
386,644.13x = 114,156,543,457.21 - Step 5: Solve for x
x = 114,156,543,457.21/386,644.13 - Step 6: Final answer
x = 295,249.65
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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.