Finding the Fourth Proportional to 305,977.64, 422,113.30 and 203,903.67
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Solution
The fourth proportional to 305,977.64, 422,113.30 and 203,903.67 is: 281,296.53
Step by Step Solution
- Step 1: Write the proportion equation
305,977.64 : 422,113.30 = 203,903.67 : x - Step 2: Convert to fraction form
305,977.64/422,113.30 = 203,903.67/x - Step 3: Cross multiply
305,977.64x = 422,113.30 × 203,903.67 - Step 4: Simplify right side
305,977.64x = 86,070,450,516.05 - Step 5: Solve for x
x = 86,070,450,516.05/305,977.64 - Step 6: Final answer
x = 281,296.53
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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.