Finding the Fourth Proportional to 207,919.32, 286,928.87 and 112,425.99
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Solution
The fourth proportional to 207,919.32, 286,928.87 and 112,425.99 is: 155,147.98
Step by Step Solution
- Step 1: Write the proportion equation
207,919.32 : 286,928.87 = 112,425.99 : x - Step 2: Convert to fraction form
207,919.32/286,928.87 = 112,425.99/x - Step 3: Cross multiply
207,919.32x = 286,928.87 × 112,425.99 - Step 4: Simplify right side
207,919.32x = 32,258,261,707.20 - Step 5: Solve for x
x = 32,258,261,707.20/207,919.32 - Step 6: Final answer
x = 155,147.98
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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.