Finding the Fourth Proportional to 201,986.46, 278,729.51 and 115,925.58
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Solution
The fourth proportional to 201,986.46, 278,729.51 and 115,925.58 is: 159,970.52
Step by Step Solution
- Step 1: Write the proportion equation
201,986.46 : 278,729.51 = 115,925.58 : x - Step 2: Convert to fraction form
201,986.46/278,729.51 = 115,925.58/x - Step 3: Cross multiply
201,986.46x = 278,729.51 × 115,925.58 - Step 4: Simplify right side
201,986.46x = 32,311,879,530.24 - Step 5: Solve for x
x = 32,311,879,530.24/201,986.46 - Step 6: Final answer
x = 159,970.52
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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.