Finding the Fourth Proportional to 312,235.99, 430,896.10 and 191,353.92
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Solution
The fourth proportional to 312,235.99, 430,896.10 and 191,353.92 is: 264,074.80
Step by Step Solution
- Step 1: Write the proportion equation
312,235.99 : 430,896.10 = 191,353.92 : x - Step 2: Convert to fraction form
312,235.99/430,896.10 = 191,353.92/x - Step 3: Cross multiply
312,235.99x = 430,896.10 × 191,353.92 - Step 4: Simplify right side
312,235.99x = 82,453,657,847.71 - Step 5: Solve for x
x = 82,453,657,847.71/312,235.99 - Step 6: Final answer
x = 264,074.80
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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.