Finding the Fourth Proportional to 154,405.36, 231,651.78 and 79,580.08
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Solution
The fourth proportional to 154,405.36, 231,651.78 and 79,580.08 is: 119,392.66
Step by Step Solution
- Step 1: Write the proportion equation
154,405.36 : 231,651.78 = 79,580.08 : x - Step 2: Convert to fraction form
154,405.36/231,651.78 = 79,580.08/x - Step 3: Cross multiply
154,405.36x = 231,651.78 × 79,580.08 - Step 4: Simplify right side
154,405.36x = 18,434,867,184.54 - Step 5: Solve for x
x = 18,434,867,184.54/154,405.36 - Step 6: Final answer
x = 119,392.66
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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.