Finding the Fourth Proportional to 389,682.63, 537,704.37 and 236,641.23
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Solution
The fourth proportional to 389,682.63, 537,704.37 and 236,641.23 is: 326,529.88
Step by Step Solution
- Step 1: Write the proportion equation
389,682.63 : 537,704.37 = 236,641.23 : x - Step 2: Convert to fraction form
389,682.63/537,704.37 = 236,641.23/x - Step 3: Cross multiply
389,682.63x = 537,704.37 × 236,641.23 - Step 4: Simplify right side
389,682.63x = 127,243,023,493.18 - Step 5: Solve for x
x = 127,243,023,493.18/389,682.63 - Step 6: Final answer
x = 326,529.88
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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.