Finding the Fourth Proportional to 289,942.14, 434,808.99 and 100,351.08
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Solution
The fourth proportional to 289,942.14, 434,808.99 and 100,351.08 is: 150,490.55
Step by Step Solution
- Step 1: Write the proportion equation
289,942.14 : 434,808.99 = 100,351.08 : x - Step 2: Convert to fraction form
289,942.14/434,808.99 = 100,351.08/x - Step 3: Cross multiply
289,942.14x = 434,808.99 × 100,351.08 - Step 4: Simplify right side
289,942.14x = 43,633,551,740.21 - Step 5: Solve for x
x = 43,633,551,740.21/289,942.14 - Step 6: Final answer
x = 150,490.55
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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.