Finding the Fourth Proportional to 234,657.19, 351,981.60 and 57,163.78
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Solution
The fourth proportional to 234,657.19, 351,981.60 and 57,163.78 is: 85,744.65
Step by Step Solution
- Step 1: Write the proportion equation
234,657.19 : 351,981.60 = 57,163.78 : x - Step 2: Convert to fraction form
234,657.19/351,981.60 = 57,163.78/x - Step 3: Cross multiply
234,657.19x = 351,981.60 × 57,163.78 - Step 4: Simplify right side
234,657.19x = 20,120,598,746.45 - Step 5: Solve for x
x = 20,120,598,746.45/234,657.19 - Step 6: Final answer
x = 85,744.65
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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.