Finding the Fourth Proportional to 303,977.13, 455,965.70 and 82,361.13
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Solution
The fourth proportional to 303,977.13, 455,965.70 and 82,361.13 is: 123,541.70
Step by Step Solution
- Step 1: Write the proportion equation
303,977.13 : 455,965.70 = 82,361.13 : x - Step 2: Convert to fraction form
303,977.13/455,965.70 = 82,361.13/x - Step 3: Cross multiply
303,977.13x = 455,965.70 × 82,361.13 - Step 4: Simplify right side
303,977.13x = 37,553,850,293.24 - Step 5: Solve for x
x = 37,553,850,293.24/303,977.13 - Step 6: Final answer
x = 123,541.70
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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.