Finding the Fourth Proportional to 417,141.36, 625,828.68 and 136,855.44
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Solution
The fourth proportional to 417,141.36, 625,828.68 and 136,855.44 is: 205,321.43
Step by Step Solution
- Step 1: Write the proportion equation
417,141.36 : 625,828.68 = 136,855.44 : x - Step 2: Convert to fraction form
417,141.36/625,828.68 = 136,855.44/x - Step 3: Cross multiply
417,141.36x = 625,828.68 × 136,855.44 - Step 4: Simplify right side
417,141.36x = 85,648,059,366.02 - Step 5: Solve for x
x = 85,648,059,366.02/417,141.36 - Step 6: Final answer
x = 205,321.43
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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.