Finding the Fourth Proportional to 202,718.76, 279,750.42 and 112,078.68
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Solution
The fourth proportional to 202,718.76, 279,750.42 and 112,078.68 is: 154,667.77
Step by Step Solution
- Step 1: Write the proportion equation
202,718.76 : 279,750.42 = 112,078.68 : x - Step 2: Convert to fraction form
202,718.76/279,750.42 = 112,078.68/x - Step 3: Cross multiply
202,718.76x = 279,750.42 × 112,078.68 - Step 4: Simplify right side
202,718.76x = 31,354,057,803.05 - Step 5: Solve for x
x = 31,354,057,803.05/202,718.76 - Step 6: Final answer
x = 154,667.77
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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.