Finding the Fourth Proportional to 415,914.24, 623,806.08 and 135,429.12
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Solution
The fourth proportional to 415,914.24, 623,806.08 and 135,429.12 is: 203,122.42
Step by Step Solution
- Step 1: Write the proportion equation
415,914.24 : 623,806.08 = 135,429.12 : x - Step 2: Convert to fraction form
415,914.24/623,806.08 = 135,429.12/x - Step 3: Cross multiply
415,914.24x = 623,806.08 × 135,429.12 - Step 4: Simplify right side
415,914.24x = 84,481,508,465.05 - Step 5: Solve for x
x = 84,481,508,465.05/415,914.24 - Step 6: Final answer
x = 203,122.42
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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.