Finding the Fourth Proportional to 258,222.68, 387,334.28 and 80,730.62
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Solution
The fourth proportional to 258,222.68, 387,334.28 and 80,730.62 is: 121,096.01
Step by Step Solution
- Step 1: Write the proportion equation
258,222.68 : 387,334.28 = 80,730.62 : x - Step 2: Convert to fraction form
258,222.68/387,334.28 = 80,730.62/x - Step 3: Cross multiply
258,222.68x = 387,334.28 × 80,730.62 - Step 4: Simplify right side
258,222.68x = 31,269,734,836.81 - Step 5: Solve for x
x = 31,269,734,836.81/258,222.68 - Step 6: Final answer
x = 121,096.01
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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.