Finding the Fourth Proportional to 417,125.40, 625,688.10 and 136,651.80
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Solution
The fourth proportional to 417,125.40, 625,688.10 and 136,651.80 is: 204,977.70
Step by Step Solution
- Step 1: Write the proportion equation
417,125.40 : 625,688.10 = 136,651.80 : x - Step 2: Convert to fraction form
417,125.40/625,688.10 = 136,651.80/x - Step 3: Cross multiply
417,125.40x = 625,688.10 × 136,651.80 - Step 4: Simplify right side
417,125.40x = 85,501,405,103.58 - Step 5: Solve for x
x = 85,501,405,103.58/417,125.40 - Step 6: Final answer
x = 204,977.70
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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.