Finding the Fourth Proportional to 258,862.83, 388,135.68 and 100,906.75
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Solution
The fourth proportional to 258,862.83, 388,135.68 and 100,906.75 is: 151,298.32
Step by Step Solution
- Step 1: Write the proportion equation
258,862.83 : 388,135.68 = 100,906.75 : x - Step 2: Convert to fraction form
258,862.83/388,135.68 = 100,906.75/x - Step 3: Cross multiply
258,862.83x = 388,135.68 × 100,906.75 - Step 4: Simplify right side
258,862.83x = 39,165,510,027.84 - Step 5: Solve for x
x = 39,165,510,027.84/258,862.83 - Step 6: Final answer
x = 151,298.32
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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.