Finding the Fourth Proportional to 201,921.71, 278,653.06 and 115,873.84
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Solution
The fourth proportional to 201,921.71, 278,653.06 and 115,873.84 is: 159,906.53
Step by Step Solution
- Step 1: Write the proportion equation
201,921.71 : 278,653.06 = 115,873.84 : x - Step 2: Convert to fraction form
201,921.71/278,653.06 = 115,873.84/x - Step 3: Cross multiply
201,921.71x = 278,653.06 × 115,873.84 - Step 4: Simplify right side
201,921.71x = 32,288,600,730.54 - Step 5: Solve for x
x = 32,288,600,730.54/201,921.71 - Step 6: Final answer
x = 159,906.53
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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.