Finding the Fourth Proportional to 427,564.23, 641,366.99 and 112,021.44
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Solution
The fourth proportional to 427,564.23, 641,366.99 and 112,021.44 is: 168,037.57
Step by Step Solution
- Step 1: Write the proportion equation
427,564.23 : 641,366.99 = 112,021.44 : x - Step 2: Convert to fraction form
427,564.23/641,366.99 = 112,021.44/x - Step 3: Cross multiply
427,564.23x = 641,366.99 × 112,021.44 - Step 4: Simplify right side
427,564.23x = 71,846,853,788.27 - Step 5: Solve for x
x = 71,846,853,788.27/427,564.23 - Step 6: Final answer
x = 168,037.57
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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.