Finding the Fourth Proportional to 203,508.70, 280,823.19 and 112,862.99
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Solution
The fourth proportional to 203,508.70, 280,823.19 and 112,862.99 is: 155,740.49
Step by Step Solution
- Step 1: Write the proportion equation
203,508.70 : 280,823.19 = 112,862.99 : x - Step 2: Convert to fraction form
203,508.70/280,823.19 = 112,862.99/x - Step 3: Cross multiply
203,508.70x = 280,823.19 × 112,862.99 - Step 4: Simplify right side
203,508.70x = 31,694,544,884.74 - Step 5: Solve for x
x = 31,694,544,884.74/203,508.70 - Step 6: Final answer
x = 155,740.49
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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.