Finding the Fourth Proportional to 425,806.76, 638,812.74 and 159,569.62
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Solution
The fourth proportional to 425,806.76, 638,812.74 and 159,569.62 is: 239,392.88
Step by Step Solution
- Step 1: Write the proportion equation
425,806.76 : 638,812.74 = 159,569.62 : x - Step 2: Convert to fraction form
425,806.76/638,812.74 = 159,569.62/x - Step 3: Cross multiply
425,806.76x = 638,812.74 × 159,569.62 - Step 4: Simplify right side
425,806.76x = 101,935,106,172.96 - Step 5: Solve for x
x = 101,935,106,172.96/425,806.76 - Step 6: Final answer
x = 239,392.88
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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.