Finding the Fourth Proportional to 289,378.36, 434,192.28 and 156,232.18
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Solution
The fourth proportional to 289,378.36, 434,192.28 and 156,232.18 is: 234,415.62
Step by Step Solution
- Step 1: Write the proportion equation
289,378.36 : 434,192.28 = 156,232.18 : x - Step 2: Convert to fraction form
289,378.36/434,192.28 = 156,232.18/x - Step 3: Cross multiply
289,378.36x = 434,192.28 × 156,232.18 - Step 4: Simplify right side
289,378.36x = 67,834,806,443.57 - Step 5: Solve for x
x = 67,834,806,443.57/289,378.36 - Step 6: Final answer
x = 234,415.62
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1.5x scale
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.