Finding the Fourth Proportional to 193,422.20, 289,822.26 and 162,318.20
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Solution
The fourth proportional to 193,422.20, 289,822.26 and 162,318.20 is: 243,216.28
Step by Step Solution
- Step 1: Write the proportion equation
193,422.20 : 289,822.26 = 162,318.20 : x - Step 2: Convert to fraction form
193,422.20/289,822.26 = 162,318.20/x - Step 3: Cross multiply
193,422.20x = 289,822.26 × 162,318.20 - Step 4: Simplify right side
193,422.20x = 47,043,427,563.13 - Step 5: Solve for x
x = 47,043,427,563.13/193,422.20 - Step 6: Final answer
x = 243,216.28
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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.