Finding the Fourth Proportional to 320,869.36, 442,660.72 and 193,474.18
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Solution
The fourth proportional to 320,869.36, 442,660.72 and 193,474.18 is: 266,910.56
Step by Step Solution
- Step 1: Write the proportion equation
320,869.36 : 442,660.72 = 193,474.18 : x - Step 2: Convert to fraction form
320,869.36/442,660.72 = 193,474.18/x - Step 3: Cross multiply
320,869.36x = 442,660.72 × 193,474.18 - Step 4: Simplify right side
320,869.36x = 85,643,419,820.21 - Step 5: Solve for x
x = 85,643,419,820.21/320,869.36 - Step 6: Final answer
x = 266,910.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.