Finding the Fourth Proportional to 203,122.48, 280,305.58 and 112,476.50
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Solution
The fourth proportional to 203,122.48, 280,305.58 and 112,476.50 is: 155,215.66
Step by Step Solution
- Step 1: Write the proportion equation
203,122.48 : 280,305.58 = 112,476.50 : x - Step 2: Convert to fraction form
203,122.48/280,305.58 = 112,476.50/x - Step 3: Cross multiply
203,122.48x = 280,305.58 × 112,476.50 - Step 4: Simplify right side
203,122.48x = 31,527,790,568.87 - Step 5: Solve for x
x = 31,527,790,568.87/203,122.48 - Step 6: Final answer
x = 155,215.66
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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.