Finding the Fourth Proportional to 425,806.19, 638,709.38 and 173,224.09
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Solution
The fourth proportional to 425,806.19, 638,709.38 and 173,224.09 is: 259,836.17
Step by Step Solution
- Step 1: Write the proportion equation
425,806.19 : 638,709.38 = 173,224.09 : x - Step 2: Convert to fraction form
425,806.19/638,709.38 = 173,224.09/x - Step 3: Cross multiply
425,806.19x = 638,709.38 × 173,224.09 - Step 4: Simplify right side
425,806.19x = 110,639,851,124.96 - Step 5: Solve for x
x = 110,639,851,124.96/425,806.19 - Step 6: Final answer
x = 259,836.17
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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.