Finding the Fourth Proportional to 154,894.68, 213,880.70 and 126,218.66
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Solution
The fourth proportional to 154,894.68, 213,880.70 and 126,218.66 is: 174,284.45
Step by Step Solution
- Step 1: Write the proportion equation
154,894.68 : 213,880.70 = 126,218.66 : x - Step 2: Convert to fraction form
154,894.68/213,880.70 = 126,218.66/x - Step 3: Cross multiply
154,894.68x = 213,880.70 × 126,218.66 - Step 4: Simplify right side
154,894.68x = 26,995,734,600.01 - Step 5: Solve for x
x = 26,995,734,600.01/154,894.68 - Step 6: Final answer
x = 174,284.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.