Finding the Fourth Proportional to 305,044.11, 420,742.26 and 201,558.42
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Solution
The fourth proportional to 305,044.11, 420,742.26 and 201,558.42 is: 278,006.17
Step by Step Solution
- Step 1: Write the proportion equation
305,044.11 : 420,742.26 = 201,558.42 : x - Step 2: Convert to fraction form
305,044.11/420,742.26 = 201,558.42/x - Step 3: Cross multiply
305,044.11x = 420,742.26 × 201,558.42 - Step 4: Simplify right side
305,044.11x = 84,804,145,152.83 - Step 5: Solve for x
x = 84,804,145,152.83/305,044.11 - Step 6: Final answer
x = 278,006.17
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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.