Finding the Fourth Proportional to 303,431.70, 455,147.55 and 203,639.70
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Solution
The fourth proportional to 303,431.70, 455,147.55 and 203,639.70 is: 305,459.55
Step by Step Solution
- Step 1: Write the proportion equation
303,431.70 : 455,147.55 = 203,639.70 : x - Step 2: Convert to fraction form
303,431.70/455,147.55 = 203,639.70/x - Step 3: Cross multiply
303,431.70x = 455,147.55 × 203,639.70 - Step 4: Simplify right side
303,431.70x = 92,686,110,537.74 - Step 5: Solve for x
x = 92,686,110,537.74/303,431.70 - Step 6: Final answer
x = 305,459.55
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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.