Finding the Fourth Proportional to 389,048.21, 537,329.39 and 261,502.37
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Solution
The fourth proportional to 389,048.21, 537,329.39 and 261,502.37 is: 361,170.94
Step by Step Solution
- Step 1: Write the proportion equation
389,048.21 : 537,329.39 = 261,502.37 : x - Step 2: Convert to fraction form
389,048.21/537,329.39 = 261,502.37/x - Step 3: Cross multiply
389,048.21x = 537,329.39 × 261,502.37 - Step 4: Simplify right side
389,048.21x = 140,512,905,942.13 - Step 5: Solve for x
x = 140,512,905,942.13/389,048.21 - Step 6: Final answer
x = 361,170.94
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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.