Finding the Fourth Proportional to 313,639.08, 471,391.74 and 147,543.72
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Solution
The fourth proportional to 313,639.08, 471,391.74 and 147,543.72 is: 221,754.54
Step by Step Solution
- Step 1: Write the proportion equation
313,639.08 : 471,391.74 = 147,543.72 : x - Step 2: Convert to fraction form
313,639.08/471,391.74 = 147,543.72/x - Step 3: Cross multiply
313,639.08x = 471,391.74 × 147,543.72 - Step 4: Simplify right side
313,639.08x = 69,550,890,896.87 - Step 5: Solve for x
x = 69,550,890,896.87/313,639.08 - Step 6: Final answer
x = 221,754.54
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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.